Prosecution Insights
Last updated: April 19, 2026
Application No. 17/836,165

OPTIMIZED CRISPR/CAS9 SYSTEMS AND METHODS FOR GENE EDITING IN STEM CELLS

Final Rejection §112§DP
Filed
Jun 09, 2022
Examiner
MONTANARI, DAVID A
Art Unit
1632
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Editas Medicine Inc.
OA Round
2 (Final)
65%
Grant Probability
Favorable
3-4
OA Rounds
3y 10m
To Grant
99%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allow Rate
491 granted / 754 resolved
+5.1% vs TC avg
Strong +49% interview lift
Without
With
+49.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
42 currently pending
Career history
796
Total Applications
across all art units

Statute-Specific Performance

§101
4.7%
-35.3% vs TC avg
§103
33.1%
-6.9% vs TC avg
§102
15.9%
-24.1% vs TC avg
§112
31.7%
-8.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 754 resolved cases

Office Action

§112 §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 . Applicant’s arguments and amendments filed on 8/20/2025 have been entered. Claims 1, 4-9, 21 and 23 have been amended. Claims 16-19 have been cancelled. In view of Applicant’s amendments to the claims the scope of enablement, the 112(b) and the 102 rejections are withdrawn. However, Applicant’s amendments to the claims would necessitate a new rejection as set forth below. Claims 1-15, 20, 21 and 23 are examined in the instant application. 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. Claim1-15, 20, 21 and 23 remain rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-16 of U.S. Patent No. 11,390,884 remain rejection for the reasons of record set forth in the Non-Final Office Action mailed on 3/20/2025 (and repeated below). Although the claims at issue are not identical, they are not patentably distinct from each other because the instantly claimed methods and dependent claims fully encompass the invention of claims 1-16 of ‘884. Practicing the invention of ‘884 would practice the instant claims and would result in preparing the same cell for transplantation as instantly claimed. The instant application was filed as a CON and the court has found that safe harbor does not apply when the continuing application is filed as CON. The court found that safe harbor from an ODP rejection only applies when a continuing application is filed as a DIV. See AMGEN INC., v. F. HOFFMANN-LA ROCHE LTD. 580 F.3d l340; 2009 U.S. App, LEXIS 20409; 92 U.S.P.Q.2D (BNA) 1289. Response to Arguments Applicant’s Arguments Applicants argue in amendment that they defer response until one or more claims in the instant application are deemed allowable. Examiner’ Response While Applicants argument has been fully considered it is not found persuasive since the ODP remains over the instant claims and the claims of ‘884. 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 1-15, 20, 21 and 23 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. Claims 1 and 23 are unclear. Claims 1 and 23 have been amended to recite the limitation “of fewer than about 72 hours” with respect contacting a cell with SR1 or an SR1 analog, however it is unclear what the metes and bounds are of the new limitation. The contacting could be less 72 hours (fewer) or the contacting could be longer than 72 hours (about), thus it is unclear what the metes and bound are of the new limitation regarding the length of contacting a cell with SR1 or an SR1 analog. Conclusion No claims 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 DAVID A MONTANARI whose telephone number is (571)272-3108. The examiner can normally be reached M-Tr 8-6. 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, Peter Paras can be reached at 571-272-4517. 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. DAVID A. MONTANARI Examiner Art Unit 1632 /ANOOP K SINGH/Primary Examiner, Art Unit 1632
Read full office action

Prosecution Timeline

Jun 09, 2022
Application Filed
Mar 14, 2025
Non-Final Rejection — §112, §DP
Aug 20, 2025
Response Filed
Nov 01, 2025
Final Rejection — §112, §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

3-4
Expected OA Rounds
65%
Grant Probability
99%
With Interview (+49.1%)
3y 10m
Median Time to Grant
Moderate
PTA Risk
Based on 754 resolved cases by this examiner. Grant probability derived from career allow rate.

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