Prosecution Insights
Last updated: May 29, 2026
Application No. 17/453,809

LIGHT EMITTING DEVICE AND AMINE COMPOUND FOR LIGHT EMITTING DEVICE

Non-Final OA §103
Filed
Nov 05, 2021
Priority
Feb 04, 2021 — RE 10-2021-0016148
Examiner
KOLLIAS, ALEXANDER C
Art Unit
1786
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Samsung Display Co., Ltd.
OA Round
4 (Non-Final)
43%
Grant Probability
Moderate
4-5
OA Rounds
0m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 43% of resolved cases
43%
Career Allowance Rate
404 granted / 948 resolved
-22.4% vs TC avg
Strong +36% interview lift
Without
With
+35.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
24 currently pending
Career history
993
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
80.5%
+40.5% vs TC avg
§102
5.7%
-34.3% vs TC avg
§112
4.6%
-35.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 948 resolved cases

Office Action

§103
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 . All outstanding objections and rejections, except for those maintained below, are withdrawn in light of applicant's amendment filed on 11/12/2025. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior office action. The new grounds of rejection set forth below are necessitated by applicant's amendment filed on 11/12/2025. In particular, original Claims 1 and 13 have been amended to recite limitations not previously presented. Thus, the following action is properly made final. Claim Rejections - 35 USC § 103 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims 1-3 and 5-20 are rejected under 35 U.S.C. 103(a) as being unpatentable over Lee et al (US 2016/0181524). Regarding claim 1, Lee et al discloses the following organic light emitting device (Abstract and [0040] - Figure): PNG media_image1.png 228 484 media_image1.png Greyscale . This device comprises a first electrode ([0040] – 110); a second electrode ([0040] – 190); and an organic layer ([0040] – layers 130, 150, and 170) disposed between the first (110) and second electrodes (190). The hole transport region (130) comprises a hole auxiliary layer ([0015]), where the hole auxiliary layer comprises the following compound ([0016], [0185], and Page 35 – Compound A4): PNG media_image2.png 406 573 media_image2.png Greyscale . This compound corresponds to Formula 1 of the claims: PNG media_image3.png 234 228 media_image3.png Greyscale , where: R1 to R8 are hydrogen; R5 to R8 are hydrogen; and L1, L2, L4, L5, L6, and L8 are hydrogen. L7 corresponds to Formula 3: PNG media_image4.png 100 132 media_image4.png Greyscale , where Ar3 and Ar4 are unsubstituted C6 aryl groups. L3 corresponds to: PNG media_image5.png 208 218 media_image5.png Greyscale , and therefore, this substituent does not correspond to Formula 2 of the present claims: PNG media_image6.png 182 254 media_image6.png Greyscale . However, the compound disclosed by the reference is but one embodiment, and attention is directed to Formula 1A ([0046] and Page 4): PNG media_image7.png 216 416 media_image7.png Greyscale , where Ar6 can be ([0092] and Page 12 – Formula 5-14): PNG media_image8.png 124 230 media_image8.png Greyscale . In Formula (5-14 ),Y31 can be N(Z35), where Z35 is a phenyl group ([0095]); Z31 and Z32 can be hydrogen ([0091]); and e3 and e4 are integers [1-3] and [1-4], respectively ([0098] and [0099]). Accordingly, the disclosure of the reference encompasses an embodiment where in Formula 2 of the claims: PNG media_image6.png 182 254 media_image6.png Greyscale , where: Ar1 and Ar2 are phenyl groups, i.e. an unsubstituted C6 aryls; R9 and R10 are hydrogen; and n1 and n2 are the integers 3 and 4, respectively. While the reference fails to exemplify the presently claimed compound nor can the claimed compound be "clearly envisaged" from the reference as required to meet the standard of anticipation, nevertheless, in light of the overlap between the claimed compound and the compound disclosed by the reference, absent a showing of criticality for the presently claimed compound, it is urged that it would have been within the skill level of one of ordinary skill in the art, to use the compound which is both disclosed by the reference and encompassed within the scope of the present claims and thereby arrive at the claimed invention. Regarding claim 2, Lee et al teaches all the claim limitations as set forth above. As discussed above, the reference discloses the following organic light emitting device: PNG media_image1.png 228 484 media_image1.png Greyscale , where the hole transport region (130) is disposed on the first electrode (110); the emission layer (150) is disposed on the hole transport region (130); the electron transport region (170) is disposed on of the emission layer (150); and where the hole transport region (130) comprises the disclosed compound. Regarding claim 3, Lee et al teaches all the claim limitations as set forth above. Additionally, the reference discloses that the hole transport region has the following structure from the anode ([0262]-[0264]): hole injection layer (HIL) / hole transport layer (HTL) / hole auxiliary layer, where hole auxiliary layer, i.e. a hole transport layer, comprises the disclosed compound. Regarding claim 5, Lee et al teaches all the claim limitations as set forth above. Given that the compound disclosed by the reference possesses two (2) amine groups, the compound is a diamine compound as recited in the present claims. Regarding claim 6, Lee et al teaches all the claim limitations as set forth above. From the above, the reference discloses a compound encompassed by Formula 4-3 of the present claims: PNG media_image9.png 300 382 media_image9.png Greyscale . Regarding claim 7, Lee et al teaches all the claim limitations as set forth above. From the discussion above, the reference discloses a compound encompassed by Formula 5-3 of the present claims: PNG media_image10.png 214 290 media_image10.png Greyscale . Regarding claim 8, Lee et al teaches all the claim limitations as set forth above. As discussed above, R1 to R10 are hydrogen. Regarding claim 9, Lee et al teaches all the claim limitations as set forth above. As discussed above, Ar1 to Ar4 are unsubstituted phenyl groups. Regarding claim 10, Lee et al teaches all the claim limitations as set forth above. From the discussion above, Formula 2 is represented by Formula 2-1: PNG media_image11.png 184 226 media_image11.png Greyscale , where R11 is hydrogen and the integer n is five (5). Regarding claim 11, Lee et al teaches all the claim limitations as set forth above. As discussed above, Ar1 to Ar4 are unsubstituted phenyl groups, corresponding to recited Formula 6-1: PNG media_image12.png 122 92 media_image12.png Greyscale , where Ra1 is hydrogen; and the integer m1 is five (5). Regarding claim 12, Lee et al teaches all the claim limitations as set forth above. From the discussion above, the compound disclosed by the reference: PNG media_image13.png 406 573 media_image13.png Greyscale , does not correspond to Formula 1 of the claims: PNG media_image14.png 162 224 media_image14.png Greyscale , due to the positions of the amine groups in the disclosed compound relative to Compound 1 of the claims. However, the reference discloses the following formula ([0046] - Formula 1A and Page 4): PNG media_image7.png 216 416 media_image7.png Greyscale , where the bonding of L1 and L3 encompass that found in Compound 1 of the present claims. Accordingly, the disclosure of the reference encompasses Compound 1 of the present claims. Regarding claim 13, Lee et al discloses the following compound ([0016], [0185], and Page 35 – Compound A4): PNG media_image2.png 406 573 media_image2.png Greyscale . This compound corresponds to Formula 1 of the claims: PNG media_image3.png 234 228 media_image3.png Greyscale , where: R1 to R8 are hydrogen; R5 to R8 are hydrogen; and L1, L2, L4, L5, L6, and L8 are hydrogen. L7 corresponds to Formula 3: PNG media_image4.png 100 132 media_image4.png Greyscale , where Ar3 and Ar4 are unsubstituted C6 aryl groups. L3 corresponds to: PNG media_image5.png 208 218 media_image5.png Greyscale , and therefore, this substituent does not correspond to Formula 2 of the present claims: PNG media_image6.png 182 254 media_image6.png Greyscale . However, the compound disclosed by the reference is but one embodiment, and attention is directed to Formula 1A ([0046] and Page 4): PNG media_image7.png 216 416 media_image7.png Greyscale , where Ar6 can be ([0092] and Page 12 – Formula 5-14): PNG media_image8.png 124 230 media_image8.png Greyscale . In Formula (5-14 ),Y31 can be N(Z35), where Z35 is a phenyl group ([0095]); Z31 and Z32 can be hydrogen ([0091]); and e3 and e4 are integers [1-3] and [1-4], respectively ([0098] and [0099]). Accordingly, the disclosure of the reference encompasses an embodiment where in Formula 2 of the claims: PNG media_image6.png 182 254 media_image6.png Greyscale , where: Ar1 and Ar2 are phenyl groups, i.e. an unsubstituted C6 aryls; R9 and R10 are hydrogen; and n1 and n2 are the integers 3 and 4, respectively. While the reference fails to exemplify the presently claimed compound nor can the claimed compound be "clearly envisaged" from the reference as required to meet the standard of anticipation, nevertheless, in light of the overlap between the claimed compound and the compound disclosed by the reference, absent a showing of criticality for the presently claimed compound, it is urged that it would have been within the skill level of one of ordinary skill in the art, to use the compound which is both disclosed by the reference and encompassed within the scope of the present claims and thereby arrive at the claimed invention. Regarding claim 14, Lee et al teaches all the claim limitations as set forth above. Given that the compound disclosed by the reference possesses two (2) amine groups, the compound is a diamine compound as recited in the present claims. Regarding claim 15, Lee et al teaches all the claim limitations as set forth above. From the discussion above, the reference discloses a compound encompassed by Formula 4-3 of the present claims: PNG media_image9.png 300 382 media_image9.png Greyscale . Regarding claim 16, Lee et al teaches all the claim limitations as set forth above. From the discussion above, the reference discloses a compound encompassed by Formula 5-3: PNG media_image10.png 214 290 media_image10.png Greyscale . Regarding claim 17, Lee et al teaches all the claim limitations as set forth above. As discussed above, Ar1 to Ar4 are unsubstituted phenyl groups. Regarding claim 18, Lee et al teaches all the claim limitations as set forth above. From the discussion above, Formula 2 is represented by Formula 2-1: PNG media_image11.png 184 226 media_image11.png Greyscale , where R11 is hydrogen; and the integer n is five (5). Regarding claim 19, Lee et al teaches all the claim limitations as set forth above. As discussed above, Ar1 to Ar4 are unsubstituted phenyl groups, corresponding to recited Formula 6-1: PNG media_image12.png 122 92 media_image12.png Greyscale , where Ra1 is hydrogen; and the integer m1 is five (5). Regarding claim 20, Lee et al teaches all the claim limitations as set forth above. The compound disclosed by the reference: PNG media_image13.png 406 573 media_image13.png Greyscale , does not correspond to Formula 1 of the claims: PNG media_image14.png 162 224 media_image14.png Greyscale , due to the positions of the amine groups in the disclosed compound relative to Compound 1 of the claims. However, the reference discloses the following formula ([0046] - Formula 1A and Page 4): PNG media_image7.png 216 416 media_image7.png Greyscale , where the bonding of L1 and L3 encompass that found in Compound 1 of the present claims. Accordingly, the disclosure of the reference encompasses Compound 1 of the present claims. Claim 4 is rejected under 35 U.S.C. 103(a) as being unpatentable over Lee et al (US 2016/0181524, hereafter Lee’524) as applied to claims 1-3 and 5-20, and as evidenced by Lee et al (US 2015/0349270, hereafter Lee ‘270). The discussion with respect to Lee ‘524 as set forth in Paragraph 6 above is incorporated here by reference. Regarding claim 4, Lee ‘524 teaches all the claim limitations as set forth above. Additionally, the reference discloses that the hole transport region has the following structure from the anode ([0262]-[0264]): hole injection layer (HIL) / hole transport layer (HTL) / hole auxiliary layer. As evidenced by Paragraph [0106] of Lee ‘270 the hole auxiliary layer increases hole injection and/or hole mobility between the anode and the emission layer and blocks electrons. Accordingly, the hole auxiliary layer disclosed by Lee ‘524, can be considered to correspond to the recited electron blocking layer recited in the present claims. Response to Arguments Applicant's arguments filed 11/12/2025 have been fully considered but are moot in light of the new grounds of the rejection set forth above. In light of the amendments to the claims, the 35 U..C. 103 rejections set forth in the previous Office Action are withdrawn. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any extension fee pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEXANDER C. KOLLIAS whose telephone number is (571)-270-3869. The examiner can normally be reached on Monday-Friday, 8:00AM – 5:00 PM EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jennifer Boyd can be reached on (571)-272-7783. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ALEXANDER C KOLLIAS/Primary Examiner, Art Unit 1786
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Prosecution Timeline

Show 8 earlier events
May 02, 2025
Request for Continued Examination
May 05, 2025
Response after Non-Final Action
Aug 21, 2025
Non-Final Rejection mailed — §103
Nov 12, 2025
Response Filed
Feb 12, 2026
Final Rejection mailed — §103
Apr 09, 2026
Response after Non-Final Action
May 11, 2026
Request for Continued Examination
May 13, 2026
Response after Non-Final Action

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
43%
Grant Probability
78%
With Interview (+35.9%)
3y 5m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 948 resolved cases by this examiner. Grant probability derived from career allowance rate.

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