Prosecution Insights
Last updated: April 19, 2026
Application No. 17/045,916

METHOD OF MODULATING TIGIT AND PD-1 SIGNALLING PATHWAYS USING 1,2,4-OXADIAZOLE COMPOUNDS

Final Rejection §DP
Filed
Oct 07, 2020
Examiner
VALENROD, YEVGENY
Art Unit
1628
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Aurigene Discovery Technologies Limited
OA Round
5 (Final)
73%
Grant Probability
Favorable
6-7
OA Rounds
2y 8m
To Grant
98%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
727 granted / 1000 resolved
+12.7% vs TC avg
Strong +26% interview lift
Without
With
+25.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
40 currently pending
Career history
1040
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
36.8%
-3.2% vs TC avg
§102
18.0%
-22.0% vs TC avg
§112
21.5%
-18.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1000 resolved cases

Office Action

§DP
DETAILED ACTION 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 . Maintained 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, 2, 11, 12, 14-16, 19, 20, 24, 25, 37-40, 62 and 63 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-19 of U.S. Patent No. 12,005,045. Although the claims at issue are not identical, they are not patentably distinct from each other because: Claims of the ‘045 patent are anticipatory to the rejected claims. Compound 19 in the ‘045 patent is the same as compound 19 in the current claim 16 and it is utilized in treatment of the same conditions and modulation of the same moieties as currently claimed. Reply to applicant arguments Applicants’ arguments filed on 11/7/25 have been considered and found to be not convincing. Allowance of the current claims would result in an improper timewise extension of the “right to exclude” granted by a patent and possible harassment of an infringer by multiple assignees. US 12,005,045 expiration date is 8/8/36. Expiration date of the patent resulting from the current application would extend beyond 8/8/36 thereby resulting in an improper extension of the right to exclude. Applicants rely on Allergan to support their argument; however, the fact pattern of Allergan does not align with the issue in question. In Allergan, the court held that a “first filed, first issues, later expiring claim cannot be invalidated by a later-filed, later issued, earlier expiring reference claim having the same priority date” which addresses the issue of PTA in the earlier filed claim that extends beyond the term of a later filed claim. Claims of the ‘045 patent are later-filed earlier issued earlier expiring claims, and there is no PTA issue that extends the patent term of the claims. Conclusion Claims 1, 2, 11, 12, 14-16, 19, 20, 24, 25, 37-40, 62 and 63 are pending Claims 1, 2, 11, 12, 14-16, 19, 20, 24, 25, 37-40, 62 and 63 are rejected 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 YEVGENY VALENROD whose telephone number is (571)272-9049. The examiner can normally be reached Mon-Fri 9am-5pm. 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, Amy L Clark can be reached on 571-272-1310. 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. /YEVGENY VALENROD/Primary Examiner, Art Unit 1628
Read full office action

Prosecution Timeline

Oct 07, 2020
Application Filed
Oct 07, 2020
Response after Non-Final Action
Sep 22, 2023
Non-Final Rejection — §DP
Feb 01, 2024
Examiner Interview Summary
Feb 01, 2024
Applicant Interview (Telephonic)
Mar 27, 2024
Response Filed
Jul 17, 2024
Non-Final Rejection — §DP
Oct 22, 2024
Response Filed
Dec 05, 2024
Final Rejection — §DP
Jun 10, 2025
Request for Continued Examination
Jun 11, 2025
Response after Non-Final Action
Jul 11, 2025
Non-Final Rejection — §DP
Sep 05, 2025
Applicant Interview (Telephonic)
Sep 08, 2025
Examiner Interview Summary
Sep 10, 2025
Examiner Interview (Telephonic)
Sep 10, 2025
Examiner Interview Summary
Nov 07, 2025
Response Filed
Jan 09, 2026
Final Rejection — §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

6-7
Expected OA Rounds
73%
Grant Probability
98%
With Interview (+25.8%)
2y 8m
Median Time to Grant
High
PTA Risk
Based on 1000 resolved cases by this examiner. Grant probability derived from career allow rate.

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