Prosecution Insights
Last updated: April 19, 2026
Application No. 18/021,840

ORGANIC LIGHT-EMITTING DEVICE, COMPOSITION FOR ORGANIC LAYER OF ORGANIC LIGHTEMITTING DEVICE, AND METHOD FOR MANUFACTURING ORGANIC LIGHT-EMITTING DEVICE

Non-Final OA §102§103§112
Filed
Feb 17, 2023
Examiner
GARRETT, DAWN L
Art Unit
1786
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Lt Materials Co. Ltd.
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
3y 7m
To Grant
82%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
689 granted / 952 resolved
+7.4% vs TC avg
Moderate +10% lift
Without
With
+10.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
74 currently pending
Career history
1026
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
43.7%
+3.7% vs TC avg
§102
15.6%
-24.4% vs TC avg
§112
24.4%
-15.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 952 resolved cases

Office Action

§102 §103 §112
CTNF 18/021,840 CTNF 76107 DETAILED ACTION 07-03-aia AIA 15-10-aia The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA. Claims 1-15 as filed on February 17, 2023 are pending. Claim Rejections - 35 USC § 112 07-36 AIA The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. 07-36-01 AIA Claim s 12-15 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim 12 recites a composition in the preamble, but depends upon claim 1, which recites a device structure in the preamble. Claim 12 and claims dependent upon claim 12 do not include all the limitations of a claim upon which they depend as claim 1 contains device structure limitations. Claim Rejections - 35 USC § 102 07-07-aia AIA 07-07 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – 07-08-aia AIA (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. 07-15 AIA Claim s 1, 3-5, and 7-15 are rejected under 35 U.S.C. 102( a)(1 ) as being anticipated by Cho et al. (US 2019/0013490 A1; listed on 02/17/2023 I.D.S.) . Cho et al. teaches light emitting devices (see abstract). Device example 8 is disclosed (see par. 213, Table 1): PNG media_image1.png 104 550 media_image1.png Greyscale PNG media_image2.png 40 556 media_image2.png Greyscale Host materials are below reproduced 1-6 (par. 156) and 2-4 (par. 190): PNG media_image3.png 288 286 media_image3.png Greyscale PNG media_image4.png 232 290 media_image4.png Greyscale . Above 1-6 anticipates instant formula 1 and above 2-4 anticipates instant formula 2. Regarding claim 3, above 1-6 has a meta bonding phenylene group per instant 1-2. Regarding claim 4, above 1-6 has a phenyl group per instant 1-1-3. Regarding claim 5, above 1-6 has a phenyl group per instant Ar11 as C6 aryl. Regarding claim 7, above 2-4 is the same as instant compound 2-31. Regarding claim 8, the example meets the structural requirement of a layer having a layer that comprises the both compounds. Regarding claims 9, 10, 12, and 13, the compounds of the above example device are used in combination in a ratio of 120:180 (see par. 213, Table 1). Regarding claim 11, the example device comprises further layers (see par. 208-211). Regarding claims 14 and 15, the combination of host materials in the example devices are co-evaporated (see par. 208-213) . Claim Rejections - 35 USC § 103 07-20-aia AIA 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, 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. 07-21-aia AIA Claim s 2 and 6 are rejected under 35 U.S.C. 103 as being unpatentable over Cho et al. (US 2019/0013490 A1) . Cho et al. is relied upon as set forth above. Regarding claims 2 and 6, Cho et al. teaches compounds of Formula 1-1 and Formula 1-2 (par. 42-49) as a first host, but materials of the formulas are positional isomers of specific instant claim 2 formulas and compounds within claim 6. It would have been obvious to one of ordinary skill in the art before the effective filing date to form positional isomers of Cho et al. formula 1-1 and 1-2 compounds the same as instant formulas 3 or 4 of claim 2 or compounds in claim 6, because one would expect the isomeric compounds to be similarly useful as host material in a light emitting device. Per MPEP 2144.09, compounds which are position isomers (compounds having the same radicals in physically different positions on the same nucleus) are generally of sufficiently close structural similarity that there is a presumed expectation that such compounds possess similar properties. In re Wilder , 563 F.2d 457, 195 USPQ 426 (CCPA 1977). See also In re May, 574 F.2d 1082, 197 USPQ 601 (CCPA 1978) (stereoisomers prima facie obvious). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Dawn Garrett whose telephone number is (571)272-1523. The examiner can normally be reached Monday through Thursday (Eastern Time). If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jennifer Boyd can be reached at 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 published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /DAWN L GARRETT/Primary Examiner, Art Unit 1786 Application/Control Number: 18/021,840 Page 2 Art Unit: 1786 Application/Control Number: 18/021,840 Page 3 Art Unit: 1786 Application/Control Number: 18/021,840 Page 4 Art Unit: 1786 Application/Control Number: 18/021,840 Page 5 Art Unit: 1786 Application/Control Number: 18/021,840 Page 6 Art Unit: 1786
Read full office action

Prosecution Timeline

Feb 17, 2023
Application Filed
Mar 20, 2026
Non-Final Rejection — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12595256
COMPOSITION FOR ORGANIC ELECTRONIC DEVICES
2y 5m to grant Granted Apr 07, 2026
Patent 12598910
COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
2y 5m to grant Granted Apr 07, 2026
Patent 12583864
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
2y 5m to grant Granted Mar 24, 2026
Patent 12581847
ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
2y 5m to grant Granted Mar 17, 2026
Patent 12563960
Organic Compound, Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device
2y 5m to grant Granted Feb 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
72%
Grant Probability
82%
With Interview (+10.0%)
3y 7m
Median Time to Grant
Low
PTA Risk
Based on 952 resolved cases by this examiner. Grant probability derived from career allow rate.

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