DETAILED ACTION
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Continued Examination Under 37 CFR 1.114
A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 10/15/2025 has been entered.
Claim Objections
Claim 8 is objected to because of the following informalities: Claim 8 recites the phrase “wherein the host consists of one of the heterocyclic compound”. Applicants are advised to amend this phrase to recite “wherein the host consists of one of the heterocyclic compounds”. Appropriate correction is required.
Claim Rejections - 35 USC § 112
The following is a quotation of 35 U.S.C. 112(b):
(b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention.
The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph:
The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.
Claims 1, 4-8, and 10-20 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, or for pre-AIA the applicant regards as the invention.
Claim 1 recites the following “wherein when one of Ar1 or Ar2 comprises a nitrogen heteroaryl group, Y1 of the other Ar1 or Ar2 is not selected from *-O-*'; and -Si(Q31)(Q32)(Q33), -N(Q31)(Q32), -B(Q31)(Q32), -C(=O)(Q31), -S(=O)2(O31), and - P(=O)(Q31)(Q32)”. The recitation of “and -Si(Q31)(Q32)(Q33), -N(Q31)(Q32), -B(Q31)(Q32), -C(=O)(Q31), -S(=O)2(Q31), and - P(=O)(Q31)(Q32)” renders the scope of the claim indefinite given that it is unclear to what this particular limitation is drawn to. That is, the above limitation appears to be a fragment that is not connected to any of the variables recited in the claim.
Claim 14 recites the following “wherein when one of Ar1 or Ar2 comprises a nitrogen heteroaryl group, Y1 of the other Ar1 or Ar2 is not selected from *-O-*'; and -Si(Q31)(Q32)(Q33), -N(Q31)(Q32), -B(Q31)(Q32), -C(=O)(Q31), -S(=O)2(O31), and - P(=O)(Q31)(Q32)”. The recitation of “and -Si(Q31)(Q32)(Q33), -N(Q31)(Q32), -B(Q31)(Q32), -C(=O)(Q31), -S(=O)2(Q31), and - P(=O)(Q31)(Q32)” renders the scope of the claim indefinite given that it is unclear to what this particular limitation is drawn to. That is, the above limitation appears to be a fragment that is not connected to any of the variables recited in the claim.
Claim 20 recites the following “wherein when one of Ar1 or Ar2 comprises a nitrogen heteroaryl group, Y1 of the other Ar1 or Ar2 is not selected from *-O-*'; and -Si(Q31)(Q32)(Q33), -N(Q31)(Q32), -B(Q31)(Q32), -C(=O)(Q31), -S(=O)2(O31), and - P(=O)(Q31)(Q32)”. The recitation of “and -Si(Q31)(Q32)(Q33), -N(Q31)(Q32), -B(Q31)(Q32), -C(=O)(Q31), -S(=O)2(Q31), and - P(=O)(Q31)(Q32)” renders the scope of the claim indefinite given that it is unclear to what this particular limitation is drawn to. That is, the above limitation appears to be a fragment that is not connected to any of the variables recited in the claim.
Claim Rejections - 35 USC § 103
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102 of this title, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.
The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows:
1. Determining the scope and contents of the prior art.
2. Ascertaining the differences between the prior art and the claims at issue.
3. Resolving the level of ordinary skill in the pertinent art.
4. Considering objective evidence present in the application indicating obviousness or nonobviousness.
This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention.
Claims 1, 4-8, and 15-16 are rejected under 35 U.S.C. 103 as being unpatentable over Leung et al (US 2021/0083203).
Regarding claim 1, Leung et al discloses an organic light emitting device comprising an anode, i.e. a first electrode, a cathode, i.e. a second electrode, and a light emitting layer, i.e. an organic layer comprising an emission layer, disposed between the anode and cathode ([0152]-[0153).
The light emitting layer comprises the following thermally activated delayed fluorescence (TADF) compound ([0001], [0017], [0106] and Page 50):
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This compound corresponds to Formula 1 of the claims:
(Ar1)n1-(L1)m1-(Ar2)n2,
where:
n1 is one (1);
m1 is zero (0) or one (1);
n2 is one (1);
n1 + n2 = 2, i.e. ≥ 1; and
L1 is a single bond.
In Formula 1 of the claims, Ar1 corresponds to recited Formula 1A, i.e.
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where:
CY1 and CY2 are C6 carbocyclic groups;
Y1 is C(R1)(R2) where R1 and R2 are C1 alkyl groups;
Y2 is N; and
R10 and R20 are H.
In Formula 1 of the claims, Ar2 corresponds to recited Formula 1A, i.e.
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where
CY1 and CY2 are C6 carbocyclic groups;
Y1 is -C=O;
Y2 is O;
R20 is H; and
R10 is a binding site to Ar1.
While the reference discloses this compound as a TADF compound and not a host as recited in the present claim, given that the reference discloses the identical compound recited in the present claims as a host, it is the Office’s position that the TADF compound disclosed by the reference will necessarily function as a host compound.
The light emitting layer further comprises the following metal organic complex as a dopant ([0001], [0017], [0020], [0106], and Page 15 – Ir-26):
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This compound corresponds to the phosphorescent dopant given by recited Formula (4), i.e.
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where:
M4 is Ir;
Y41 and Y42 are N;
Y43 and Y44 are C;
T41 to T44 are single bonds;
L42 and L44 are single bonds;
the integers m44 and m42 are one (1);
the integers m41 and m43 are zero (0);
R41 is a C7 cycloalkyl; and
R42 to R43 are hydrogen.
Given that the claim recites that the phosphorescent dopant comprises an organometallic compound represented by Formula 4, the claims admit or allow for additional components or elements to be present in the phosphorescent dopant including additional ligands such those found in the phosphorescent dopant disclosed by the reference.
Given that the reference does not disclose Compound 1-15:
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it is clear that the host does not comprise Compound 1-15 as recited in the present claims.
The reference does not explicitly disclose that the host and dopant satisfy Equations (1) to (3) recited in the present claims. However, the reference discloses the host compound and phosphorescent dopant encompassed by the presented claims, and therefore, it is reasonable that one of ordinary skill in the art would expect these compounds to meet the requirements of Equations 1 to 3 as recited in the present claims.
The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components. Therefore, the claimed effects and physical properties, i.e. the host and dopant satisfying Equations 1 to 3 would naturally arise and be achieved by the presence of the claimed compounds. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
While the reference fails to exemplify the presently claimed organic light emitting device nor can the claimed organic light emitting device be "clearly envisaged" from the reference as required to meet the standard of anticipation, nevertheless, in light of the overlap between the claimed organic light emitting device and the organic light emitting device disclosed by the reference, absent a showing of criticality for the presently claimed host and dopant, it is urged that it would have been within the skill level of one of ordinary skill in the art, to use the host and dopant compounds which are both disclosed by the reference and encompassed within the scope of the present claims and thereby arrive at the claimed invention.
Regarding claim 4, Leung et al teaches all the claim limitations as set forth above. As discussed above, L1 is a single bond.
Regarding claim 5, Leung et al teaches all the claim limitations as set forth above. As discussed above, Ar1 corresponds to Formula 4-2:
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where:
Y21 is C(Z26)(Z27);
Z26 and Z27 are C1 alkyl groups; and
Z21 and Z22 are hydrogen.
Regarding claim 6, Leung et al teaches all the claim limitations as set forth above. As discussed above, R1 and R2 are C1 alkyls, i.e. methyl groups; and R10 and R20 are H.
Regarding claim 7, Leung et al teaches all the claim limitations as set forth above. From the discussion above, the host compound:
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does not correspond to Compound 1-11 of the claims:
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given the difference in the bonding of Y2 to ring CY1. However, the compound disclosed by the reference and that claimed are isomers - compounds having the same radicals in physically different positions on the same nucleus, and the courts have held, as found in In re Wilder, 563 F.2d 457, 195 USPQ 426 (CCPA 1977), that compounds which are isomers “are generally of sufficiently close structural similarity that there is a presumed expectation that such compounds possess similar properties”.
In light of the case law cited above, it therefore would have been obvious to one of ordinary skill in the art that the compound disclosed in the present claims is but an obvious variant of the compound disclosed in the reference, and thereby, one of ordinary skill in the art would have arrived at the claimed invention.
Alternatively, it is noted that TADF compound disclosed by the reference is but one embodiment and the reference discloses the following compound TADF or host compound(Page 47):
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which corresponds to Compound 1-8 of the claims.
Regarding claim 8, Leung et al teaches all the claim limitations as set forth above. Given that the reference only requires the host compound discussed above, it is clear that the host consists of the heterocyclic compound represented by Formula 1 as recited in the present claims.
Regarding claim 10, Leung et al teaches all the claim limitations as set forth above. From the discussion above, A41 and A42 correspond to Formula 2-4:
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where X24 is N*; X25 is C*; X26 is C; and R21 is hydrogen or a C6 cycloalkyl.
A43 and A44 are benzene groups represented by Formula (2-1), i.e.
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where X21 to X23 are C* and R21 is H.
Regarding claim 15, Leung et al teaches all the claim limitations as set forth above. Additionally, the reference discloses that the metal organic complex comprises between 0.01 to 30 wt. % of the mixture ([0103]). Given that the mixture is only required to comprise the TADF compound and the metal organic complex, it is clear that the amount of the TADF or host compound is greater than the organic metal complex.
Regarding claim 16, Leung et al teaches all the claim limitations as set forth above.. The Office realizes that all of the claimed effects or physical properties are not positively stated by the reference. However, the reference teaches all of the claimed compounds in the recited light emitting layer of an organic light emitting device. The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components in the claimed amount. Therefore, the claimed effects and physical properties, i.e. the emission layer emits blue light having a maximum emission wavelength in the range of about 420 nm to about 475 nm, would naturally arise and be achieved by a composition with all the claimed ingredients. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
Claims 1, 4-6, 8, 10-12, 14-17, and 19 are rejected under 35 U.S.C. 103 as being unpatentable over Kim et al (US 2013/0292659) in view of Li et al (US 2015/0162552).
Regarding claim 1, Kim et al discloses the following organic light emitting device ([0091] - Figure 5):
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where layer 102 is the anode ([0085]), corresponding to the recited first electrode, and layer 110 is the cathode ([0086]), corresponding to the recited second electrode and faces the first electrode ([0049]). The organic layer comprises layers 130 to 170, where layer 130 is the light emitting layer ([0091]).
The light emitting layer comprises the following host compound ([0040], [0073], and Page 33 – Chemical Formula 27d):
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This compound corresponds to recited Formula 1, i.e.
(Ar1)n1-(L1)m1-(Ar2)n2,
where:
n1 is one (1);
m1 is zero (0) or one (1);
n2 is one (1);
n1 + n2 = 2, i.e. ≥ 1; and
L1 is a single bond.
In Formula 1 of the claims, Ar1 corresponds to recited Formula 1A, i.e.
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where:
Y1 is -S-;
Y2 a single bond;
R10 is hydrogen;
R20 is binding site to L1;
CY1 and CY2 are C6 carbocyclic groups;
a10 is four (4); and
a20 is one (1).
In Formula 1 of the claims, Ar2 corresponds to Formula 1A:
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where:
Y1 is a single bond;
Y2 is -N(R1)-, where R1 is a substituted C6 aryl group and where the substitution on the aryl group is C3 heteroaryl group, i.e. triazine, substituted with two (2) phenyl groups, i.e. C6 aryl groups;
R10 is binding site to L1;
R20 is a dibenzofuran group, i.e. a C12 heteroaryl group; C
Y1 and CY2 are C6 carbocyclic groups;
a10 is four (4); and
a20 is one (1).
It is noted that in the above compound in recited Formula 1A Y2 is -N(R1)-, and Y1 is S, which is excluded by the present claims. However, the compound is but one embodiment and attention is directed to the following formula ([0014] – Chemical Formula 3):
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where X2 and X3 can be PR’’ and PR’’’, respectively ([0015]), where R’’ and R’’’ can be hydrogen ([0015]). Accordingly, disclosure of the reference encompasses an embodiment where Y1 is PR1, where R1 is hydrogen.
Finally, given that the reference does not disclose Compound 1-15,
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it is clear that the host does not comprise Compound 1-15 as recited in the present claims.
While the reference discloses that the light emitting layer comprises a phosphorescent dopant, the reference does not disclose the dopant given by Formula (4) as recited in the present claims ([0128]).
Li et al discloses an organic light emitting device, where the light emitting layer comprises the following tetradentate platinum complex (Abstract and Page 2):
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This compound corresponds to the phosphorescent dopant given by recited Formula (4), i.e.
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where
M4 is Pt;
Y41 and Y42 are C;
Y43 and Y44 are N;
ring A41 is a carbazole ring, i.e. a C12 heterocyclic group;
ring A42 is a benzene group, i.e. a C6 carbocyclic group;
ring A43 is an imidazole group, i.e. a C3 heterocyclic group;
T41 to T44 are single bonds;
L41 is O;
L42 and L44 are single bonds;
the integers m41, m42, and m44 are one (1);
the integer m43 is zero (0);
R41 is H;
the integer b41 is six (6);
R42 is tert-butyl, i.e. a C4 alkyl;
the integer b42 is one (1);
R44 is tert-butyl, i.e. a C4 alkyl;
the integer b44 is one (1);
R43 is methyl, i.e. a C1 alkyl; and
the integer b43 is one (1).
The reference discloses that utilizing this compound in an electrochemically stable device architecture results in long operational lifetime with an estimated LT97 of over 600 hours at a luminance of 100 cd/m2 (Abstract).
Given that both Kim et al and Li et al are drawn to organic light emitting devices comprising host compounds and phosphorescent dopants, and given that Kim et al does not explicitly prohibit other ingredients, in light of the particular advantages provided by the use and control of the phosphorescent compound as taught by Li et al, it would therefore have been obvious to one of ordinary skill in the art to include such dopant compounds in the light emitting layer of the device disclosed by Kim et al in order to obtain an electrochemically stable device with a long operational life with a reasonable expectation of success.
The references do not explicitly disclose that the host and dopant satisfy Equations (1) to (3) recited in the present claims. However, the references disclose the host compound and phosphorescent dopant encompassed by the presented claims, and therefore, it is reasonable that one of ordinary skill in the art would expect these compounds to meet the requirements of Equations 1 to 3 as recited in the present claims.
The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components. Therefore, the claimed effects and physical properties, i.e. the host and dopant satisfying Equations 1 to 3 would naturally arise and be achieved by the presence of the claimed compounds. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
Regarding claim 4, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. As discussed above, L1 is a single bond.
Regarding claim 5, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. As discussed above, Kim et al discloses the compound:
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This compound can be relabeled as follows:
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and therefore, corresponds to recited Formula 1, i.e.
(Ar1)n1-(L1)m1-(Ar2)n2,
where n1 is two (2); m1 is two (2); n2 is one (1); n1 + n2 = 3, i.e. ≥ 1; and L1 is a combination of carbazole group, i.e. a C5 heterocyclic group and a benzene, i.e. a C6 carbocyclic group.
In Formula 1 of the claims, Ar1 corresponds to recited Formula 1A, i.e.
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where:
Y1 is PR1, where R1 is hydrogen;
Y2 a single bond;
R10 is hydrogen;
R20 is binding site to L1;
CY1 and CY2 are C6 carbocyclic groups;
the integer a10 is four (4); and
the integer a20 is one (1).
In Formula 1 of the claims, Ar2 corresponds to Formula 1B:
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where
X1 is a N;
a30 is two (2); and
R30 is a C6 aryl group.
Ar2 corresponds to Formula 4-24 of the claims:
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where Z21 and Z22 are phenyl groups.
Regarding claim 6, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. As discussed above, R10 and R20 are hydrogen. R30 is a phenyl group corresponding to Formula 5-1 of the claims:
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where Z31 is hydrogen.
Regarding claim 8, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. Given that Kim et al only requires the host compound discussed above, it is clear that the host consists of the heterocyclic compound represented by Formula 1 as recited in the present claims.
Regarding claim 10, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. As discussed above, Li et al discloses a compound where ring A41 is a carbazole group represented by Formula (2-9), i.e.
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where:
X24 is N*;
X25 and X26 are C*; and
R21 and R22 are H.
Ring A42 is a benzene group represented by Formula (2-1), i.e.
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where X21 to X23 are C* and R21 is H.
Ring A43 is an imidazole group represented by Formula (2-11), i.e.
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where:
X29 is N-R25, where R25 is methyl;
X27 is N*;
X28 is N*; and
R21 and R22 are H.
Ring A44 is pyridine group represented by Formula (2-4), i.e.
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where:
X24 is N*;
X25 is C*;
X26 is C; and
R21 is tert-butyl.
Regarding claim 11, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. As discussed above, Li et al discloses a compound where M4 is Pt; T41 to T44 are single bonds and L42 and L44 are single bonds.
Regarding claim 12, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. As discussed above, Li et al discloses a compound where R41 is H; R42 are tert-butyl; R43 is an alkyl group; and R44 is tert-butyl.
Regarding claim 15, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. Additionally, Kim et al discloses a light emitting layer where a phosphorescent dopant is utilized in an amount of 7.0 wt. %, while the host compound comprises 97 wt. % of the light emitting layer (Example 5 – [0125]-[0128] and [0132]) relative to the total of the host and dopant. Accordingly, it is clear that the amount of host is greater than the amount of the phosphorescent dopant as recited in the present claims.
Regarding claim 16, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. The Office realizes that all of the claimed effects or physical properties are not positively stated by the references. However, the references teach all of the claimed compounds in the recited light emitting layer of an organic light emitting device. The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components in the claimed amount. Therefore, the claimed effects and physical properties, i.e. the emission layer emits blue light having a maximum emission wavelength in the range of about 420 nm to about 475 nm, would naturally arise and be achieved by a composition with all the claimed ingredients. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
Regarding claim 17, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. As discussed above, Kim et al discloses the following device:
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In this device, layer 120 corresponds to the anode and layer 120 corresponds to the cathode. The hole injection (170) and hole transport (140) layers correspond to the recited hole transport region and are located between the first electrode (120) and the light emitting layer (130) ([0192]). The electron transport (150) and electron injection (160) layers correspond to the recited electron transport region and are located between the second electrode (110) and the light emitting layer (130) ([0192]).
Regarding claim 19, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. Additionally, Kim et al discloses that the electron transport region comprises an electron transport layer formed from Alq3 ([0130]), i.e. a metal comprising material.
Regarding claim 14, Kim et al discloses the following organic light emitting device ([0091] - Figure 5):
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where layer 102 is the anode ([0085]), corresponding to the recited first electrode, and layer 110 is the cathode ([0086]), corresponding to the recited second electrode and faces the first electrode ([0049]). The organic layer comprises layers 130 to 170, where layer 130 is the light emitting layer ([0091]).
The light emitting layer comprises the following host compound ([0040], [0073], and Page 33 – Chemical Formula 27d):
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This compound corresponds to recited Formula 1, i.e.
(Ar1)n1-(L1)m1-(Ar2)n2,
where:
n1 is one (1);
m1 is zero (0) or one (1);
n2 is one (1);
n1 + n2 = 2, i.e. ≥ 1; and
L1 is a single bond.
In Formula 1 of the claims, Ar1 corresponds to recited Formula 1A, i.e.
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where:
Y1 is -S-;
Y2 a single bond;
R10 is hydrogen;
R20 is binding site to L1;
CY1 and CY2 are C6 carbocyclic groups;
a10 is four (4); and
a20 is one (1).
In Formula 1 of the claims, Ar2 corresponds to Formula 1A:
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138
438
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,
where:
Y1 is a single bond;
Y2 a -N(R1)-, where R1 is a substituted C6 aryl group and where the substitution on the aryl group is C3 heteroaryl group, i.e. triazine, substituted with two (2) phenyl groups, i.e. C6 aryl groups;
R10 is binding site to L1;
R20 is a dibenzofuran group, i.e. a C12 heteroaryl group;
CY1 and CY2 are C6 carbocyclic groups;
a10 is four (4); and
a20 is one (1).
It is noted that in the above compound in Formula 1A Y2 is -N(R1)- and Y1 is S, which is excluded by the present claims. However, the compound is but one embodiment and attention is directed to the following formula ([0014] – Chemical Formula 3):
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218
464
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,
where X2 and X3 can be PR’’ and PR’’’, respectively ([0015]), where R’’ and R’’’ can be hydrogen ([0015]). Accordingly, disclosure of the reference encompasses an embodiment where Y1 is PR1, where R1 is hydrogen.
Finally, given that the reference does not disclose Compound 1-15,
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158
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,
it is clear that the host does not comprise Compound 1-15 as recited in the present claims.
While the reference discloses that the light emitting layer comprises a phosphorescent dopant, the reference does not disclose the dopant given by Formula (4) as recited in the present claims ([0128]).
Li et al discloses an organic light emitting device, where the light emitting layer comprises the following tetradentate platinum complex (Abstract and Page 2):
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395
523
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,
corresponding to Compound 2-11 of the claims.
The reference discloses that utilizing this compound in an electrochemically stable device architecture results in long operational lifetime with an estimated LT97 of over 600 hours at a luminance of 100 cd/m2 (Abstract).
Given that both Kim et al and Li et al are drawn to organic light emitting devices comprising host compounds and phosphorescent dopants, and given that Kim et al does not explicitly prohibit other ingredients, in light of the particular advantages provided by the use and control of the phosphorescent compound as taught by Li et al, it would therefore have been obvious to one of ordinary skill in the art to include such dopant compounds in the light emitting layer of the device disclosed by Kim et al in order to obtain an electrochemically stable device with a long operational life with a reasonable expectation of success.
The references do not explicitly disclose that the host and dopant satisfy Equations (1) to (3) recited in the present claims. However, the references disclose the host compound and phosphorescent dopant encompassed by the presented claims, and therefore, it is reasonable that one of ordinary skill in the art would expect these compounds to meet the requirements of Equations 1 to 3 as recited in the present claims.
The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components. Therefore, the claimed effects and physical properties, i.e. the host and dopant satisfying Equations 1 to 3 would naturally arise and be achieved by the presence of the claimed compounds. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
Claim 18 is rejected under 35 U.S.C. 103 as being unpatentable over Kim et al (US 2013/0292659) and Li et al (US 2015/0162552) as applied to claims 1, 4-6, 8, 10-12, 14-17, and 19 above, and in view of Cho et al (US 2015/0207079).
The discussion with respect to Kim et al and Li et al as set forth in Paragraph 13 above is incorporated here by reference.
Regarding claim 18, the combined disclosures of Kim et al and Li et al teach all the claim limitations as set forth above. However, Kim et al does not disclose that the hole transport layer comprises a p-dopant where the LUMO of the dopant is -3.5 eV or less as recited in the present claims.
Cho et al discloses an organic light emitting device comprising an anode (Figure – layer 110, and a cathode (Figure – layer 190 ([0040] and [0271]). The hole transport region in the device comprises a charge generating material, i.e. a p-dopant, such as ([0113]-[0114] – Compound HT-D1):
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310
295
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.
The reference does not disclose the LUMO of this compound is -3.5 eV or less. However, it is noted that the reference discloses the identical compound disclosed on Pages 68-69 of the instant Specification, i.e. compound HAT-CN, as having a LUMO of -3.5 eV or less. Accordingly, it is the Examiner’s position that the compound disclosed by the reference necessarily has a LUMO or less than -3.5 eV. The reference discloses that this compound is a charge generating material which improves conductivity in the device.
Given that both Kim et al and Cho et al are drawn to organic light emitting devices comprising hole transport layers and given that Kim et al does not prohibit additional ingredients in the hole transport layer, in light of the particular advantages provided by the use and control of the p-dopant as taught by Cho et al, it would therefore have been obvious to one of ordinary skill in the art to include such p-dopants in the hole transporting layer disclosed by Kim et al with a reasonable expectation of success.
Claim 1 is rejected under 35 U.S.C. 103 as being unpatentable over Matsuura et al (US 2003/0157366) in view of Li et al (US 2015/0162552).
Regarding claim 1, Matsuura et al discloses an electroluminescence element, i.e. an organic light emitting device comprising a pair of electrodes, i.e. a first electrode facing a second electrode, and a light emitting layer. i.e. an organic layer, disposed between the anode and cathode ([0087]-[0088]). The light emitting layer comprises the following host compound (Abstract [0030] – Formula 5, [0085] and Page 15 - Compound 6-3):
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431
524
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.
This compound corresponds to recited Formula 1, i.e.
(Ar1)n1-(L1)m1-(Ar2)n2,
where:
n1 is one (1);
m1 is one (1);
n2 is zero (0);
n1 + n2 = 2, i.e. ≥ 1; and
L1 is a single bond is a C6 carbocyclic group, i.e. a substituted benzene.
Ar1 corresponds to Formula 1(1) of the claims:
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128
470
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,
where:
Y11 is a single bond;
Y12 is -N(R15)-, where R15 is a binding site to L1;
CY11 and CY12 are benzene groups; and
R11 and R12 are hydrogen.
Given that the reference discloses the compound:
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431
524
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,
and not recited Compound 1-15:
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158
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,
it is clear that the host does not comprise Compound 1-15 as recited in the present claims.
While the reference discloses that the light emitting layer comprises a phosphorescent dopant, the reference does not disclose the dopant given by Formula (4) as recited in the present claims ([0128]).
Li et al discloses an organic light emitting device, where the light emitting layer comprises the following tetradentate platinum complex (Abstract, Page 2):
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398
539
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.
This compound corresponds to the phosphorescent dopant given by recited Formula (4), i.e.
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330
552
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,
where
M4 is Pt;
Y41 and Y42 are C;
Y43 and Y44 are N;
ring A41 is a carbazole ring, i.e. a C12 heterocyclic group;
ring A42 is a benzene group, i.e. a C6 carbocyclic group;
ring A43 is an imidazole group, i.e. a C3 heterocyclic group;
T41 to T44 are single bonds;
L41 is O;
L42 and L44 are single bonds;
the integers m41, m42, and m44 are one (1);
the integer m43 is zero (0);
R41 is H;
the integer b41 is six (6);
R42 is tert-butyl, i.e. a C4 alkyl;
the integer b42 is one (1);
R44 is tert-butyl, i.e. a C4 alkyl;
the integer b44 is one (1);
R43 is methyl, i.e. a C1 alkyl; and
the integer b43 is one (1).
The reference discloses that utilizing this compound in an electrochemically stable device architecture results in long operational lifetime with an estimated LT97 of over 600 hours at a luminance of 100 cd/m2 (Abstract).
Given that both Matsuura et al and Li et al are drawn to organic light emitting devices comprising host compounds and phosphorescent dopants, and given that Matsuura et al does not explicitly prohibit other ingredients, in light of the particular advantages provided by the use and control of the phosphorescent compound as taught by Li et al, it would therefore have been obvious to one of ordinary skill in the art to include such dopant compounds in the light emitting layer of the device disclosed by Matsuura et al in order to obtain an electrochemically stable device with a long operational life with a reasonable expectation of success.
The references do not explicitly disclose that the host and dopant satisfy Equations (1) to (3) recited in the present claims. However, the references disclose the host compound and phosphorescent dopant encompassed by the presented claims, and therefore, it is reasonable that one of ordinary skill in the art would expect these compounds to meet the requirements of Equations 1 to 3 as recited in the present claims.
The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components. Therefore, the claimed effects and physical properties, i.e. the host and dopant satisfying Equations 1 to 3 would naturally arise and be achieved by the presence of the claimed compounds. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
Claim 20 is rejected under 35 U.S.C. 103 as being unpatentable over Kim et al (US 2013/0292659) in view of Li et al (US 2014/0364605) and Shin et al (US 2012/0049192).
Regarding claim 20, Kim et al discloses the following organic light emitting device ([0091] - Figure 5):
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281
767
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,
where layer 102 is the anode ([0085]), corresponding to the recited first electrode, and layer 110 is the cathode ([0086]), corresponding to the recited second electrode and faces the first electrode ([0049]). The organic layer comprises layers 130 to 170, where layer 130 is the light emitting layer ([0091]).
The light emitting layer comprises the following host compound ([0040], [0073], and Page 33 – Chemical Formula 27d):
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550
589
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.
This compound corresponds to recited Formula 1, i.e.
(Ar1)n1-(L1)m1-(Ar2)n2,
where:
n1 is one (1);
m1 is zero (0) or one (1);
n2 is one (1);
n1 + n2 = 2, i.e. ≥ 1; and
L1 is a single bond.
In Formula 1 of the claims, Ar1 corresponds to recited Formula 1A, i.e.
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138
438
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,
where:
Y1 is -S-;
Y2 a single bond;
R10 is hydrogen;
R20 is binding site to L1;
CY1 and CY2 are C6 carbocyclic groups;
the integer a10 is four (4); and
a20 is one (1).
In Formula 1 of the claims, Ar2 corresponds to Formula 1A:
PNG
media_image2.png
138
438
media_image2.png
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,
where:
Y1 is a single bond;
Y2 a -N(R1)-, where R1 is a substituted C6 aryl group and where the substitution on the aryl group is C3 heteroaryl group, i.e. triazine, substituted with two (2) phenyl groups, i.e. C6 aryl groups;
R10 is binding site to L1;
R20 is a dibenzofuran group, i.e. a C12 heteroaryl group;
CY1 and CY2 are C6 carbocyclic groups;
the integer a10 is four (4); and
a20 is one (1).
It is noted that in the above compound in Formula 1A Y2 is -N(R1)-, and in Formula 1 Y1 is S, which is excluded by the present claims. However, the compound is but one embodiment and attention is directed to the following formula ([0014] – Chemical Formula 3):
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218
464
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,
where X2 and X3 can be PR’’ and PR’’’, respectively ([0015]), where R’’ and R’’’ can be hydrogen ([0015]). Accordingly, disclosure of the reference encompasses an embodiment where Y1 is PR1, where R1 is hydrogen.
Finally, given that the reference does not disclose Compound 1-15,
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158
228
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,
it is clear that the host does not comprise Compound 1-15 as recited in the present claims.
While the reference discloses that the light emitting layer comprises a phosphorescent dopant, the reference does not disclose the dopant given by Formula (4) as recited in the present claims ([0128]).
Li et al discloses an organic light emitting device, where the light emitting layer comprises the following tetradentate platinum complex (Abstract and Page 2):
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398
539
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.
This compound corresponds to the phosphorescent dopant given by recited Formula (4), i.e.
PNG
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330
552
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,
where
M4 is Pt;
Y41 and Y42 are C;
Y43 and Y44 are N;
ring A41 is a carbazole ring, i.e. a C12 heterocyclic group;
ring A42 is a benzene group, i.e. a C6 carbocyclic group;
ring A43 is an imidazole group, i.e. a C3 heterocyclic group;
T41 to T44 are single bonds;
L41 is O;
L42 and L44 are single bonds;
the integers m41, m42, and m44 are one (1);
the integer m43 is zero (0);
R41 is H;
the integer b41 is six (6);
R42 is tert-butyl, i.e. a C4 alkyl;
the integer b42 is one (1);
R44 is tert-butyl, i.e. a C4 alkyl;
the integer b44 is one (1);
R43 is methyl, i.e. a C1 alkyl; and
the integer b43 is one (1).
The reference discloses that utilizing this compound in an electrochemically stable device architecture results in long operational lifetime with an estimated LT97 of over 600 hours at a luminance of 100 cd/m2 (Abstract).
Given that both Kim et al and Li et al are drawn to organic light emitting devices comprising host compounds and phosphorescent dopants, and given that Kim et al does not explicitly prohibit other ingredients, in light of the particular advantages provided by the use and control of the phosphorescent compound as taught by Li et al, it would therefore have been obvious to one of ordinary skill in the art to include such dopant compounds in the light emitting layer of the device disclosed by Kim et al in order to obtain an electrochemically stable device with a long operational life with a reasonable expectation of success.
The references do not explicitly disclose that the host and dopant satisfy Equations (1) to (3) recited in the present claims. However, the references disclose the host compound and phosphorescent dopant encompassed by the presented claims, and therefore, it is reasonable that one of ordinary skill in the art would expect these compounds to meet the requirements of Equations 1 to 3 as recited in the present claims.
The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components. Therefore, the claimed effects and physical properties, i.e. the host and dopant satisfying Equations 1 to 3 would naturally arise and be achieved by the presence of the claimed compounds. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
While Kim et al discloses a display apparatus, the reference does not disclose that the display apparatus comprises a thin film transistor as recited in the present claims ([0001]).
Shin et al discloses a display apparatus comprising a thin film transistor (Abstract). The thin film transistor comprises a source electrode, a drain electrode and an active layer (Abstract). The transistor further comprises an organic light emitting device, where the first electrode of the organic light emitting device is connected to the drain electrode ([0048]). The reference discloses that the flat panel display apparatus comprising the thin film transistor easily provide uniform electrical characteristics and uniform display characteristics
Given that both Kim et al and Shin et al are drawn to display devices comprising organic light emitting devices, and given that Shin et al does not explicitly prohibit other device elements, in light of the particular advantages provided by the use and control of the thin film transistor as taught by Shin et al, it would therefore have been obvious to one of ordinary skill in the art to modify the display device disclosed by Kim et al to include the thin film transistor disclosed by Shin et al with a reasonable expectation of success.
Claims 1, 4-5, 8, 12-13, 15-17, and 19 are rejected under 35 U.S.C. 103 as being unpatentable over Kim et al (US 2013/0292659) in view of Hiroo et al (US 2015/0243913).
Regarding claim 1, Kim et al discloses the following organic light emitting device ([0091] - Figure 5):
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281
767
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,
where layer 102 is the anode ([0085]), corresponding to the recited first electrode, and layer 110 is the cathode ([0086]), corresponding to the recited second electrode and faces the first electrode ([0049]). The organic layer comprises layers 130 to 170, where layer 130 is the light emitting layer ([0091]).
The light emitting layer comprises the following host compound ([0040], [0073], and Page 33 – Chemical Formula 27d):
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550
589
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.
This compound corresponds to recited Formula 1, i.e.
(Ar1)n1-(L1)m1-(Ar2)n2,
where:
n1 is one (1);
m1 is zero (0) or one (1);
n2 is one (1);
n1 + n2 = 2, i.e. ≥ 1; and
L1 is a single bond.
In Formula 1 of the claims, Ar1 corresponds to recited Formula 1A, i.e.
PNG
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138
438
media_image2.png
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,
where:
Y1 is -S-;
Y2 a single bond;
R10 is hydrogen;
R20 is binding site to L1;
CY1 and CY2 are C6 carbocyclic groups;
the integer a10 is four (4); and
a20 is one (1).
In Formula 1 of the claims, Ar2 corresponds to Formula 1A:
PNG
media_image2.png
138
438
media_image2.png
Greyscale
,
where:
Y1 is a single bond;
Y2 a -N(R1)-, where R1 is a substituted C6 aryl group and where the substitution on the aryl group is C3 heteroaryl group, i.e. triazine, substituted with two (2) phenyl groups, i.e. C6 aryl groups;
R10 is binding site to L1;
R20 is a dibenzofuran group, i.e. a C12 heteroaryl group;
CY1 and CY2 are C6 carbocyclic groups;
the integer a10 is four (4); and
a20 is one (1).
It is noted that in the above compound in Formula 1A Y2 is -N(R1)-, and in Formula 1 Y1 is S, which is excluded by the present claims. However, the compound is but one embodiment and attention is directed to the following formula ([0014] – Chemical Formula 3):
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218
464
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,
where X2 and X3 can be PR’’ and PR’’’, respectively ([0015]), where R’’ and R’’’ can be hydrogen ([0015]). Accordingly, disclosure of the reference encompasses an embodiment where Y1 is PR1, where R1 is hydrogen.
Finally, given that the reference does not disclose Compound 1-15,
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158
228
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,
it is clear that the host does not comprise Compound 1-15 as recited in the present claims.
While the reference discloses that the light emitting layer comprises a phosphorescent dopant, the reference does not disclose the dopant given by Formula (4) as recited in the present claims ([0128]).
Hiroo et al discloses an organic light emitting device where the light emitting layer comprises the following compound (Abstract, Page 56 – Compound 228):
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376
582
media_image29.png
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,
This compound corresponds to the phosphorescent dopant given by recited Formula (4), i.e.
PNG
media_image4.png
330
552
media_image4.png
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,
where:
M4 is Pt;
Y41 and Y42 are N;
Y43 and Y44 are C;
rings A41 and A42 are pyridine rings; i.e. C5 heterocyclic groups;
rings A43 and A44 are imidazole rings, i.e. a C3 heterocyclic group;
T41 to T44 are single bonds;
L41 is O;
L42 and L44 are single bonds;
the integers m41, m42, m44 are one (1);
the integer m44 is zero (0);
R41 and R42 are C1 alkyls substituted with a C5 cycloalkyl substituted with a methyl group;
the integers b41 and b42 are one (1);
R44 and R43 are cyano groups; and
the integers b44 and b43 are one (1).
The reference discloses that the compound possessing the 5-membered ring is excellent in chemical stability, and therefore, an organic light emitting device possessing this 5-membered saturated ring possesses excellent drive durability ([0076]). Furthermore, the quaternary carbon atom in the saturated 5-membered ring is bulky, as well as rigid, resulting in enhancement of device efficiency, reduction of driving voltage, and improvement in durability ([0077]).
Given that both Kim et al and Hiroo et al are drawn to organic light emitting devices comprising host compounds and phosphorescent dopants, and given that Kim et al does not explicitly prohibit other ingredients, in light of the particular advantages provided by the use and control of the phosphorescent compound as taught by Hiroo et al, it would therefore have been obvious to one of ordinary skill in the art to include such compounds in the light emitting layer of the device disclosed by Kim et al in order to obtain an electrochemically stable device with a long operational life with a reasonable expectation of success.
The references do not explicitly disclose that the host and dopant satisfy Equations (1) to (3) recited in the present claims. However, the references disclose the host compound and phosphorescent dopant encompassed by the presented claims, and therefore, it is reasonable that one of ordinary skill in the art would expect these compounds to meet the requirements of Equations 1 to 3 as recited in the present claims.
The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components. Therefore, the claimed effects and physical properties, i.e. the host and dopant satisfying Equations 1 to 2 would naturally arise and be achieved by the presence of the claimed compounds. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
Regarding claim 4, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. As discussed above, L1 is a single bond.
Regarding claim 5, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. As discussed above, Kim et al discloses the compound:
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.
This compound can be relabeled as follows:
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552
607
media_image16.png
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,
and therefore, corresponds to recited Formula 1, i.e.
(Ar1)n1-(L1)m1-(Ar2)n2,
where n1 is two (2); m1 is two (2); n2 is one (1); n1 + n2 = 3, i.e. ≥ 1; and L1 is a combination of carbazole group, i.e. a C5 heterocyclic group and a benzene, i.e. a C6 carbocyclic group.
In Formula 1 of the claims, Ar1 corresponds to recited Formula 1A, i.e.
PNG
media_image2.png
138
438
media_image2.png
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,
where:
Y1 is PR1, where R1 is hydrogen;
Y2 a single bond;
R10 is hydrogen;
R20 is binding site to L1;
CY1 and CY2 are C6 carbocyclic groups;
the integer a10 is four (4); and
the integer a20 is one (1).
In Formula 1 of the claims, Ar2 corresponds to Formula 1B:
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media_image17.png
94
168
media_image17.png
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,
where
X1 is a N;
a30 is two (2); and
R30 is a C6 aryl group.
Ar2 corresponds to Formula 4-24 of the claims:
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106
126
media_image18.png
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,
where Z21 and Z22 are phenyl groups.
Regarding claim 8, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. Given that Kim et al only requires the host compound discussed above, it is clear that the host consists of the heterocyclic compound represented by Formula 1 as recited in the present claims.
Regarding claim 12, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. As discussed above, Hiroo et al discloses a compound where M4 is Pt; T41 to T44 are single bonds and L42 and L44 are single bonds.
Regarding claim 13, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. As discussed above, Hiroo et al discloses a compound where Y41 and Y42 are N; and Y43 and Y44 are C.
Regarding claim 15, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. Additionally, Kim et al discloses a light emitting layer where the phosphorescent dopant is utilized in an amount of 7.0 wt. %, while the host compound comprises 97 wt. % of the light emitting layer (Example 5 – [0125]-[0128] and [0132]) relative to the total of the host and dopant. Accordingly, it is clear that the amount of host is greater than the amount of the phosphorescent dopant as recited in the present claims.
Regarding claim 16, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. The Office realizes that all of the claimed effects or physical properties are not positively stated by the references. However, the references teach all of the claimed compounds in the recited light emitting layer of an organic light emitting device. The original specification does not identify a feature that results in the claimed effect or physical property outside of the presence of the claimed components in the claimed amount. Therefore, the claimed effects and physical properties, i.e. the emission layer emits blue light having a maximum emission wavelength in the range of about 420 nm to about 475 nm, would naturally arise and be achieved by a composition with all the claimed ingredients. "Products of identical chemical composition cannot have mutually exclusive properties." In re Spada, 911 F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). A chemical composition and its properties are inseparable. Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. See MPEP § 2112.01. If it is the applicant's position that this would not be the case: (1) evidence would need to be provided to support the applicant's position; and (2) it would be the Office's position that the application contains inadequate disclosure that there is no teaching as to how to obtain the claimed properties with only the claimed ingredients.
Regarding claim 17, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. As discussed above, Kim et al discloses the following device:
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.
In this device, layer 120 corresponds to the anode and layer 120 corresponds to the cathode. The hole injection (170) and hole transport (140) layers correspond to the recited hole transport region and are located between the first electrode (120) and the light emitting layer (130) ([0192]). The electron transport (150) and electron injection (160) layers correspond to the recited electron transport region and are located between the second electrode (110) and the light emitting layer (130) ([0192]).
Regarding claim 19, the combined disclosures of Kim et al and Hiroo et al teach all the claim limitations as set forth above. Additionally, Kim et al discloses that the electron transport region comprises an electron transport layer formed from Alq3 ([0130]), i.e. a metal comprising material.
Response to Arguments
Applicant's arguments filed /17/2025 have been fully considered but they are not persuasive.
In light of the amendments to the claims, the claim objections and 35 U.S.C. 112 (b) rejections set forth in the previous Office Action are withdrawn.
Applicants argue that Kim and Matsuura do not teach, suggest, or render obvious the combination of features in claim 1 as amended, i.e. Kim and Matsuura fail to disclose that the host compound does not comprising Compound 1-15:
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and that neither reference discloses a host compound when both of Ar1 and Ar2 are a group represented by Formula 1A and Y2 of one of Ar1 or Ar2 is selected from NR1, Y1 of the other or Ar1 or Ar2 is not selected from S. However, firstly given that the references do not disclose Compound 1-15, it is the Office’s position that it is clear that the hosts disclosed by both Kim and Matsuura do not comprise Compound 1-15 as recited in the present claims.
Secondly, it is noted that while Kim et al discloses the following compound:
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550
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and this compound does not meet the recited provision in claim 1, as discussed in the rejections set forth above, the reference discloses the following general formula:
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where X2 and X3 can be PR’’ and PR’’’, respectively ([0015]), where R’’ and R’’’ can be hydrogen ([0015]). Accordingly, disclosure of the reference encompasses an embodiment where Y1 in Formula 1A is PR1, where R1 is hydrogen.
Conclusion
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/ALEXANDER C KOLLIAS/Primary Examiner, Art Unit 1786
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