Prosecution Insights
Last updated: July 17, 2026
Application No. 18/309,548

METHODS AND COMPOSITIONS FOR TREATING, PREVENTING OR REVERSING OBESITY AND OBESITY-RELATED DISORDERS BY OPSIN 3 REGULATION OF HYPOTHALAMIC MELANOCORTIN RECEPTORS

Non-Final OA §DP
Filed
Apr 28, 2023
Priority
Sep 25, 2019 — provisional 62/905,765 +2 more
Examiner
ANGELL, JON E
Art Unit
1637
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Brown University
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
579 granted / 817 resolved
+10.9% vs TC avg
Strong +21% interview lift
Without
With
+21.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
36 currently pending
Career history
859
Total Applications
across all art units

Statute-Specific Performance

§101
5.7%
-34.3% vs TC avg
§103
38.4%
-1.6% vs TC avg
§102
19.9%
-20.1% vs TC avg
§112
20.1%
-19.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 817 resolved cases

Office Action

§DP
DETAILED ACTION Claims 9-12 are pending. 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 . 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 9-12 rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-4 of U.S. Patent No. 11,674,142. Although the claims at issue are not identical, they are not patentably distinct from each other for the following reasons. The instant claims are drawn to a method of treating a metabolic syndrome comprising the step of administering to a subject in need thereof a composition that downregulates opsin 3 (OPN3) protein expression, OPN3 gene expression, and/or OPN3 activation, wherein the composition comprises an OPN3-targeted shRNA selected from the group consisting of SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, and a combination thereof (see claim 1). The claims of the ‘142 patent are drawn to method of treating obesity or an obesity-related disorder comprising the step of administering to a subject in need thereof a composition that downregulates opsin 3 (OPN3) protein expression, OPN3 gene expression, and/or OPN3 activation, wherein the composition comprises an OPN3-targeted shRNA selected from the group consisting of SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, and a combination thereof. It is noted that the ‘142 patent indicates “Obesity is a complex disease involving an excessive amount of body fat” (see column 1, lines 37-38). Accordingly, the claims of the ‘142 patent broadly encompass treating an excessive amount of body fat, and the instant claims explicitly encompass treating “excess body fat” (see instant claim 12). Therefore, the instant claims and the claims of the ‘142 overlap in scope, and the instant claims are thus obvious variations of the invention claimed in the ‘142 patent. Therefore, a non-statutory double patenting rejection is appropriate. It is noted that the prior art does not teach an shRNA having the sequence of any of SEQ ID NOs: 1-3, let alone methods of treating a metabolic syndrome using one of said shRNAs. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to J. E. Angell whose telephone number is (571)272-0756. The examiner can normally be reached Monday-Friday (8:30-5:00). 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 Dunston can be reached at (571) 272-2916. 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. J. E. Angell Primary Examiner Art Unit 1637 /J. E. ANGELL/ Primary Examiner, Art Unit 1637
Read full office action

Prosecution Timeline

Apr 28, 2023
Application Filed
May 29, 2026
Non-Final Rejection mailed — §DP (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

1-2
Expected OA Rounds
71%
Grant Probability
92%
With Interview (+21.0%)
3y 3m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 817 resolved cases by this examiner. Grant probability derived from career allowance rate.

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