Prosecution Insights
Last updated: May 29, 2026
Application No. 18/078,886

Light Emitting Display Device

Final Rejection §112§DOUBLEPATENT§DP
Filed
Dec 09, 2022
Priority
Dec 31, 2021 — RE 10-2021-0194802
Examiner
VISCONTI, GERALDINA
Art Unit
1737
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LG Display Co., Ltd.
OA Round
2 (Final)
87%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
1154 granted / 1333 resolved
+21.6% vs TC avg
Minimal +1% lift
Without
With
+1.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
22 currently pending
Career history
1366
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
29.5%
-10.5% vs TC avg
§102
31.0%
-9.0% vs TC avg
§112
17.0%
-23.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1333 resolved cases

Office Action

§112 §DOUBLEPATENT §DP
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 . This office action is responsive to the Amendment, Remarks, and Terminal Disclaimer filed 6 April 2026. Claims 1-20 remain pending and presently under consideration in this application. Response to Amendment Applicant’s amendments have failed to satisfactorily address the rejection of claims 1 and 14 under 35 U.S.C. 112(b) or 35 U.S.C. 112(pre-AIA ), second paragraph, as set forth in paragraph 4 of the previous office action on the merits. Please refer to the following paragraph 10 for additional comments. The rejection of claims 13 and 20 under 35 U.S.C. 112(b) or 35 U.S.C. 112(pre-AIA ), second paragraph, as set forth in paragraph 5 of the previous office action on the merits, is hereby withdrawn in view of applicant’s amendments to the same. Terminal Disclaimer The terminal disclaimer filed on 6 April 2026 disclaiming the terminal portion of any patent granted on this application which would extend beyond the expiration date of copending application serial no. 18/078,731 has been reviewed and is accepted. The terminal disclaimer has been recorded. Response to Arguments Applicant's arguments filed 6 April 2026 regarding the rejection of claims under 35 U.S.C. 112(b) or 35 U.S.C. 112(pre-AIA ), second paragraph, as set forth in the previous office action on the merits, simply summarize the amendments to the claims. Applicant's arguments filed 6 April 2026 are silent with respect to the rejection of claims on the ground of nonstatutory double patenting over copending application serial no. 18/079,709 as set forth in paragraph 8 of the previous office action on the merits. 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 1-20 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 applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Amended claims 1 and 14 are rejected as being vague and indefinite when they each recite “X1, X2, X3, X4, X5, and X6 are each independently N or CH; and at least one of X4, X5, and X6 is N” (emphasis added); the scope of the protection sought is not clear, particularly as there are two of each of the substituents X4, X5, and X6 in formula 1: PNG media_image1.png 239 378 media_image1.png Greyscale . 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, claims 1 and 14 each recite the broad recitation that “X4, X5, and X6 are each independently N or CH”, and the claims also recite “at least one of X4, X5, and X6 is N” 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. Claims 1 and 14 each fail to particularly point out and distinctly claim the compound of formula 1 contained in the claimed light emitting display device, i.e., whether both occurrences of at least one of X4, X5, and X6 is N and the remaining ones are CH. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-20 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-20 of copending Application No. 18/079,709 (corresponding to U.S. Patent Application Publication No. 2023/0217815). Although the claims at issue are not identical, the Examiner notes that they are obvious variants thereof each other, and that they are not patentably distinct from each other because both sets of claims are drawn to a light emitting device characterized by comprising an anode and a cathode having therebetween at least two blue stacks and a phosphorescent stack, wherein at least one of the blue stacks comprises an electron transport layer including a compound of Formula 1 as represented by PNG media_image1.png 239 378 media_image1.png Greyscale . This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion THIS ACTION IS MADE FINAL. 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 Geraldina Visconti whose telephone number is (571)272-1334. The examiner can normally be reached Monday-Friday, 8:00am-4:30pm. 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, Mark F Huff can be reached at 571-272-1385. 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. GERALDINA VISCONTI Primary Examiner Art Unit 1737 /GERALDINA VISCONTI/Primary Examiner, Art Unit 1737
Read full office action

Prosecution Timeline

Dec 09, 2022
Application Filed
Jan 16, 2026
Non-Final Rejection mailed — §112, §DOUBLEPATENT, §DP
Apr 06, 2026
Response Filed
May 15, 2026
Final Rejection mailed — §112, §DOUBLEPATENT, §DP (current)

Precedent Cases

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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
87%
Grant Probability
88%
With Interview (+1.4%)
2y 2m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1333 resolved cases by this examiner. Grant probability derived from career allowance rate.

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