Prosecution Insights
Last updated: April 19, 2026
Application No. 17/356,293

COMPOSITIONS AND METHODS FOR ACCURATELY IDENTIFYING MUTATIONS

Final Rejection §DP
Filed
Jun 23, 2021
Examiner
ZHANG, KAIJIANG
Art Unit
1684
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Fred Hutchinson Cancer Center
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
2y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
518 granted / 678 resolved
+16.4% vs TC avg
Strong +36% interview lift
Without
With
+35.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
28 currently pending
Career history
706
Total Applications
across all art units

Statute-Specific Performance

§101
6.3%
-33.7% vs TC avg
§103
26.5%
-13.5% vs TC avg
§102
24.5%
-15.5% vs TC avg
§112
26.6%
-13.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 678 resolved cases

Office Action

§DP
DETAILED ACTION 1. This action is written in response to applicant’s correspondence filed 10/16/2025. Applicant has amended claims 39-42, 45, 50-52, 54, 57, 60-64 and 67, canceled claims 43-44, 47-49, 55-56, 59 and 65-66, and added new claims 68-75. Claims 39-42, 45-46, 50-54, 57-58, 60-64 and 67-75 are currently pending for examination. All the amendments and arguments have been thoroughly reviewed but are found insufficient to place the instantly examined claims in condition for allowance. In view of the amendment to claim 39 and applicant’s submitted “tables of illustrative support” (see pages 8-13 of applicant’s response filed 10/16/2025), it is determined that the effective filling date for the currently presented set of claims is February 17, 2012. Thus, Salk et al. (US 10,689,700 B2) is no longer available as prior art and the rejection under 35 USC 102 is hereby withdrawn. However, applicant’s amendment to the claims has necessitated new ground(s) of rejection as set forth below. Double Patenting 2. 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. 3. Claims 39-42, 45-46, 50-54, 57-58, 60-64 and 67-75 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-25 of U.S. Patent No. 10,450,606. Although the claims at issue are not identical, they are not patentably distinct from each other because claims 1-25 of U.S. Patent No. 10,450,606 teach or render obvious all the steps and elements as recited in instant claims 39-42, 45-46, 50-54, 57-58, 60-64 and 67-75. Specifically, claims 1, 9, 11 and 24-25 of U.S. Patent No. 10,450,606 teach all the features required by the method of instant claim 39. In addition, the further features as recited in dependent claims 40-42, 45-46, 50-54, 57-58, 60-64 and 67-75 are also taught or rendered obvious by claims 1-25 of U.S. Patent No. 10,450,606. 4. Claims 39-42, 45-46, 50-54, 57-58, 60-64 and 67-75 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-15 of U.S. Patent No. 11,441,180. Although the claims at issue are not identical, they are not patentably distinct from each other because claims 1-15 of U.S. Patent No. 11,441,180 teach or render obvious all the steps and elements as recited in instant claims 39-42, 45-46, 50-54, 57-58, 60-64 and 67-75. Specifically, claims 1, 5 and 9-10 of U.S. Patent No. 11,441,180 teach all the features required by the method of instant claim 39. In addition, the further features as recited in dependent claims 40-42, 45-46, 50-54, 57-58, 60-64 and 67-75 are also taught or rendered obvious by claims 1-15 of U.S. Patent No. 11,441,180. Response to Arguments 5. Applicant’s arguments have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion 6. 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 KAIJIANG ZHANG whose telephone number is (571)272-5207. The examiner can normally be reached Monday - Friday, 8:30 am - 5 pm. 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, Heather Calamita can be reached at 571-272-2876. 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. /KAIJIANG ZHANG/Primary Examiner, Art Unit 1684
Read full office action

Prosecution Timeline

Jun 23, 2021
Application Filed
Jun 23, 2021
Response after Non-Final Action
May 13, 2025
Non-Final Rejection — §DP
Oct 16, 2025
Response Filed
Jan 19, 2026
Final Rejection — §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
76%
Grant Probability
99%
With Interview (+35.5%)
2y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 678 resolved cases by this examiner. Grant probability derived from career allow rate.

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