Prosecution Insights
Last updated: August 17, 2026
Application No. 18/166,431

ORTHO-SUBSTITUTED THERMALLY ACTIVATED DELAYED FLUORESCENCE MATERIAL AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

Non-Final OA §103§112
Filed
Feb 08, 2023
Priority
Mar 27, 2015 — RE 10-2015-0043263 +3 more
Examiner
YANG, JAY LEE
Art Unit
1786
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Samsung Display Co., Ltd.
OA Round
6 (Non-Final)
74%
Grant Probability
Favorable
6-7
OA Rounds
2m
Est. Remaining
76%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
676 granted / 915 resolved
+8.9% vs TC avg
Minimal +2% lift
Without
With
+2.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
50 currently pending
Career history
983
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
53.8%
+13.8% vs TC avg
§102
18.5%
-21.5% vs TC avg
§112
23.3%
-16.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 915 resolved cases

Office Action

§103 §112
DETAILED ACTION This Office Action is in response to the Applicant’s Amendment filed 05/01/26. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Response to Amendment The objection to Claim 28 as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the Applicant’s amendments. The rejection of Claims 19-22 and 27 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 applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the cancellation of the claims. The rejection of Claims 24-26, 28-32, and 34-38 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 applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the Applicant’s amendments. The rejection of Claim 28 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 as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the Applicant’s amendments. The rejection of Claims 19, 20, 22, and 27 under 35 U.S.C. 103 as being unpatentable over Je et al. (KR 10-2011-0105285) in view of Kim et al. (WO 2010/110553 A2) as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the cancellation of the claims. The rejection of Claims 24, 26, 29, 30, 34, 35, 37, and 38 under 35 U.S.C. 103 as being unpatentable over Je et al. (KR 10-2011-0105285) in view of Kim et al. (WO 2010/110553 A2) as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the Applicant’s amendments. The rejection of Claim 21 under 35 U.S.C. 103 as being unpatentable over Je et al. (KR 10-2011-0105285) in view of Kim et al. (WO 2010/110553 A2) in view of Yoon et al. (US 2003/0165715 A1) as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the cancellation of the claim. The rejection of Claims 31 and 32 under 35 U.S.C. 103 as being unpatentable over Je et al. (KR 10-2011-0105285) in view of Kim et al. (WO 2010/110553 A2) and Liao et al. (US 2006/0145604 A1) as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the Applicant’s amendments. The rejection of Claim 36 under 35 U.S.C. 103 as being unpatentable over Je et al. (KR 10-2011-0105285) in view of Kim et al. (WO 2010/110553 A2) and Yamazaki et al. (US 2002/0190257 A1) as set forth in the Non-Final Rejection filed 02/05/26 is overcome by the Applicant’s amendments. 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 23-26, 28-32, and 34-40 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 applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, Claim 23, which the other claims are dependent upon, recites the broad recitation as set forth below: PNG media_image1.png 190 642 media_image1.png Greyscale (page 4), and the claim also recites the following: PNG media_image2.png 48 640 media_image2.png Greyscale (page 7) which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Allowable Subject Matter 14. Claim 33 is allowed. The closest prior art is provided by Dobbs et al. (US 2013/0264560 A1) which discloses triazine compounds of the following form: PNG media_image3.png 129 380 media_image3.png Greyscale where Ar1-3 = independently: PNG media_image4.png 118 377 media_image4.png Greyscale where a = 1-5, b = 0-5, and c = 0-4 ([0064], [0067]-[0068]); Q = N, O, S-heterocycle (among others) ([0066]). An embodiment is disclosed: PNG media_image5.png 420 421 media_image5.png Greyscale (page 5). However, it is the position of the Office that neither Dobbs et al. singly nor in combination with any other prior art discloses the light-emitting device as recited in the claims, particularly in regards to the nature of the first and second capping layers of the device. Response to Arguments 15. Applicant’s arguments on pages 33-37 with respect to the deficiencies of the previously cited prior art have been considered but are moot in view of the new grounds of rejection as set forth above. Conclusion 16. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JAY L YANG whose telephone number is (571)270-1137. The examiner can normally be reached Mon-Fri, 6am-3pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jennifer A 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. /JAY YANG/Primary Examiner, Art Unit 1786
Read full office action

Prosecution Timeline

Show 7 earlier events
Jul 09, 2025
Response Filed
Sep 18, 2025
Final Rejection mailed — §103, §112
Nov 05, 2025
Response after Non-Final Action
Dec 02, 2025
Request for Continued Examination
Dec 04, 2025
Response after Non-Final Action
Feb 05, 2026
Non-Final Rejection mailed — §103, §112
May 01, 2026
Response Filed
Jul 16, 2026
Non-Final Rejection mailed — §103, §112 (current)

Precedent Cases

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Patent 12666863
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

6-7
Expected OA Rounds
74%
Grant Probability
76%
With Interview (+2.2%)
3y 9m (~2m remaining)
Median Time to Grant
High
PTA Risk
Based on 915 resolved cases by this examiner. Grant probability derived from career allowance rate.

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