Prosecution Insights
Last updated: April 19, 2026
Application No. 17/660,058

ORGANIC ELECTROLUMINESCENT MATERIAL AND DEVICE THEREOF

Final Rejection §112
Filed
Apr 21, 2022
Examiner
YOON, TAE H
Art Unit
1762
Tech Center
1700 — Chemical & Materials Engineering
Assignee
BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.
OA Round
2 (Final)
66%
Grant Probability
Favorable
3-4
OA Rounds
2y 12m
To Grant
92%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allow Rate
953 granted / 1442 resolved
+1.1% vs TC avg
Strong +25% interview lift
Without
With
+25.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 12m
Avg Prosecution
35 currently pending
Career history
1477
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
47.6%
+7.6% vs TC avg
§102
11.6%
-28.4% vs TC avg
§112
23.1%
-16.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1442 resolved cases

Office Action

§112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . DETAILED ACTION 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 25 and 26 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. Claim 25 recites the first host compound has a structure represented by Formula 4, but it also recites various compounds H-1 to H-243. Thus, claim 25 is indefinite since scope of claim 25 is unclear since it recites a broad Formula 4 as well as the various compounds H-1 to H-243 thereof. See Ex parte Miyazaki, No. 2007-3300, 2008 WL 5105055, at 5 (BPAI Nov. 19, 2008) 89 USPQ2d 1207: [I]f a claim is amendable to two or more plausible claim constructions, the USPTO is justified in requiring the applicant to more precisely define the metes and bounds of the claimed invention by holding the claim unpatentable under 35. USC 112, 2nd paragraph, as indefinite. MPEP 2175 and 2143.03. Further, the recited various compounds H-1 to H-243 were present in the original claim 25 and thus it is confusing since the various compounds H-1 to H-243 have underlines indicating new limitations. Claim 26 recites the second host compound has a structure represented by Formula 5, but it also recites various compounds X-1 to X-150. Thus, claim 25 is indefinite since scope of claim 25 is unclear since it recites a broad Formula 4 as well as the various compounds H-1 to H-243 thereof. See Ex parte Miyazaki, No. 2007-3300, 2008 WL 5105055, at 5 (BPAI Nov. 19, 2008) 89 USPQ2d 1207: [I]f a claim is amendable to two or more plausible claim constructions, the USPTO is justified in requiring the applicant to more precisely define the metes and bounds of the claimed invention by holding the claim unpatentable under 35. USC 112, 2nd paragraph, as indefinite. MPEP 2175 and 2143.03. Further, the recited various compounds X-1 to X-150 were present in the original claim 26 and thus it is confusing since the various compounds X-1 to X-150 have underlines indicating new limitations. CLAIM ALLOWANCE Amended claims and applicant’s arguments thereof are found persuasive and thus claims 1-5, 7-8, 11-24 and 27-35 are allowed. 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 nonprovisional extension fee (37 CFR 1.17(a)) 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 mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TAE H YOON whose telephone number is (571)272-1128. The examiner can normally be reached Mon-Fri. 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, Robert Jones can be reached at (571)270-7733. 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. /TAE H YOON/Primary Examiner, Art Unit 1762
Read full office action

Prosecution Timeline

Apr 21, 2022
Application Filed
Oct 24, 2025
Non-Final Rejection — §112
Jan 26, 2026
Response Filed
Feb 17, 2026
Examiner Interview Summary
Feb 17, 2026
Examiner Interview (Telephonic)
Mar 13, 2026
Final Rejection — §112 (current)

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

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Prosecution Projections

3-4
Expected OA Rounds
66%
Grant Probability
92%
With Interview (+25.4%)
2y 12m
Median Time to Grant
Moderate
PTA Risk
Based on 1442 resolved cases by this examiner. Grant probability derived from career allow rate.

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