Prosecution Insights
Last updated: October 04, 2026
Application No. 18/351,442

COMPOSITIONS AND METHODS FOR SELECTIVE ELIMINATION AND REPLACEMENT OF HEMATOPOIETIC STEM CELLS

Final Rejection §DP
Filed
Jul 12, 2023
Priority
Mar 13, 2017 — provisional 62/470,814 +3 more
Examiner
CARTER, SANDRA DILLAHUNT
Art Unit
1674
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Poseida Therapeutics Inc.
OA Round
2 (Final)
56%
Grant Probability
Moderate
3-4
OA Rounds
3m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allowance Rate
296 granted / 527 resolved
-3.8% vs TC avg
Strong +29% interview lift
Without
With
+29.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
31 currently pending
Career history
561
Total Applications
across all art units

Statute-Specific Performance

§101
8.9%
-31.1% vs TC avg
§103
21.6%
-18.4% vs TC avg
§102
11.7%
-28.3% vs TC avg
§112
39.1%
-0.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 527 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 . The amendments and remarks filed 6/3/26 are acknowledged. Claims 210, 221-223, and 225 have been amended. Claims 1-209, 211-216, and 220 have been canceled. Claims 210, 217-219, and 221-225 are pending and under examination. Withdrawn Objections and Rejections The objection to the specification for minor informalities is withdrawn in light of Applicant’s amendment thereto. See paragraph 3, page 2 of the previous Office action. The rejection of claims 210-225 under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement, is withdrawn in light of Applicant’s amendment thereto. See paragraph 5, page 3 of the previous Office action. The rejection of claim 220 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or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention, is withdrawn in light of Applicant’s amendment thereto. See paragraph 8, page 11 of the previous Office action. Maintained Rejection 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 210, 217-219, and 221-225 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-19 of U.S. Patent No. 11744861. Although the claims at issue are not identical, they are not patentably distinct from each other because both sets of claims are encompass treating AML in a subject comprising administering to the subject an effective amount of a composition comprising a plurality of T cells that express a chimeric ligand receptor (CLR) that specifically binds to c-KIT, wherein the CLR comprises:(a) an ectodomain comprising: i) a signal peptide comprising a human CD8α signal peptide; ii) a scFv comprising the amino acid sequence of SEQ ID NO: 73; and iii) a hinge domain comprising a human CD8α hinge domain; (b) a transmembrane domain comprising a human CD8α transmembrane domain; (c) a co-stimulatory domain comprising a human 4-1BB costimulatory domain; and (d) an endodomain comprising a human CD3ζ endodomain. Both sets of claims recite the same CLR, comprising the same sequences. Thus, the instant claims and the patent claims are of the same scope and not patentably distinct. Applicant’s Arguments Applicant argues that a terminal disclaimer in compliance with 37 C.F.R. § 1.321 with respect to U.S. Patent No. 11,744,861 has been filed. Response to Arguments Applicant’s arguments have been fully considered but they are not persuasive. The terminal disclaimer filed on 6/3/26 disclaiming the terminal portion of any patent granted on this application which would extend beyond the expiration date of U.S. Patent No. 11,744,861 has been reviewed and is NOT accepted. The terminal fails to identify the person signing the terminal disclaimer. The terminal disclaimer should be signed by the applicant or by an attorney or agent of record. Applicant should check box 1 or box 2, and resubmit the terminal disclaimer. No fee is required. Claim Status No claims are allowed. 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 SANDRA CARTER whose telephone number is (571)272-2932. The examiner can normally be reached 8:00-5:00 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, Vanessa L. Ford can be reached at (571)272-0857. 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. /SANDRA CARTER/Examiner, Art Unit 1674 /VANESSA L. FORD/Supervisory Patent Examiner, Art Unit 1674
Read full office action

Prosecution Timeline

Jul 12, 2023
Application Filed
Mar 11, 2026
Non-Final Rejection mailed — §DP
Jun 03, 2026
Response Filed
Aug 12, 2026
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

3-4
Expected OA Rounds
56%
Grant Probability
85%
With Interview (+29.0%)
3y 6m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 527 resolved cases by this examiner. Grant probability derived from career allowance rate.

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