Prosecution Insights
Last updated: April 19, 2026
Application No. 18/300,747

ANTIGEN-BINDING PROTEINS AND RELATED METHODS OF USE

Non-Final OA §102§112§DP
Filed
Apr 14, 2023
Examiner
PUTTLITZ, KARL J
Art Unit
1646
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Gritstone Bio Inc.
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
87%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allow Rate
974 granted / 1409 resolved
+9.1% vs TC avg
Strong +18% interview lift
Without
With
+18.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
58 currently pending
Career history
1467
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
37.5%
-2.5% vs TC avg
§102
11.3%
-28.7% vs TC avg
§112
26.8%
-13.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1409 resolved cases

Office Action

§102 §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 . 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, 8, 10, 12, 14, 15, 17, 18, 26, 33, 34, 37, 73, 86, 88, 115, 119, 120, 128, 132-134 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. It is unclear if the ABP of claim 1 is an antibody since the claim does not clearly set forth that the ABP is an antibody. Claim 115 recites an isolated polynucleotide or set of polynucleotides encoding the ABP, a VH thereof, a VL thereof, a light chain thereof, a heavy chain thereof, or an antigen-binding portion thereof; optionally cDNA. It is unclear what combination of polypeptides constitutes the “set” as claimed. It is also unclear what portion of the VH, VL, light or heavy chains Applicant intends to cover. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim 115 is rejected under 35 U.S.C. 102(a)(1) or 102(a)(2) as being anticipated by WO 2020037302, as evidenced by counterpart US 20220213196 (US 196). Claim 115 covers polynucleotides encoding a VL segment of the instant ABP. In this regard, US 196 teaches SEQ ID 248 which comprises the required CDR-L1, CDR-L2 and CDR-L3 corresponding to SEQ ID NO’s: 28, 30, and 39, respectively: See attached GenCore version 6.5.2, Copyright (c) 1993 – 2025; Biocceleration Ltd., citation Sequence 248, Publication No. US20220213196A1: PNG media_image1.png 792 618 media_image1.png Greyscale The polynucleotides encoding these are also taught, see paragraphs 0089-0090. Claim 115 is rejected under 35 U.S.C. 102(a)(1) or 102(a)(2) as being anticipated by WO 2019133853 (WO 853) Claim 115 covers polynucleotides encoding a VH segment of the instant ABP. In this regard, US 196 teaches SEQ ID 124 which comprises the required CDR-H1, CDR-H2 and CDR-H3 corresponding to SEQ ID NO’s: 16, 26, and 27, respectively: See attached GenCore version 6.5.2, Copyright (c) 1993 – 2025; Biocceleration Ltd., citation BGN95135; Sequence 124, Publication No. WO2019133853-A1: PNG media_image2.png 634 656 media_image2.png Greyscale PNG media_image3.png 306 676 media_image3.png Greyscale The polynucleotides encoding these are also taught, see paragraph 0456. 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, 8, 10, 12, 14, 15, 17, 18, 24, 26, 33, 34, 37, 42, 45, 73, 86, 88, 115, 119,120, 128, 132, 133, and 134 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 137-166 of copending Application No. 19/284,312. Although the claims at issue are not identical, they are not patentably distinct from each other. Specifically, the ABP recited in the conflicting claims, as well as associated expression systems, anticipate those covered by the rejected claims. Alternatively, the difference between the ABP covered by the rejected claims and the ABP covered by the conflicting claims is that the conflicting claims may not recite the instant ABP with particularity so as to amount to anticipation (See M.P.E.P. § 2131: "[t]he identical invention must be shown in as complete detail as is contained in the ... claim." Richardson v. Suzuki Motor Co., 868 F.2d 1226, 1236, 9 USPQ2d 1913, 1920 (Fed. Cir. 1989). The elements must be arranged as required by the claim, but this is not an ipsissimis verbis test, i.e., identity of terminology is not required. In re Bond, 910 F.2d 831, 15 USPQ2d 1566 (Fed. Cir. 1990).). However, the conflicting claims recite the elements of the instant ABP with sufficient guidance, particularity, and with a reasonable expectation of success, that the invention would be prima facie obvious to one of ordinary skill (the prior art reference teaches or suggests all the claim limitations with a reasonable expectation of success. See M.P.E.P. § 2143). This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KARL J PUTTLITZ whose telephone number is (571)272-0645. The examiner can normally be reached on Monday to Friday from 9 a.m. to 5 p.m. If attempts to reach the examiner by telephone are unsuccessful, the examiner's acting supervisor, Janet Epps-Smith, can be reached at telephone number (571)272-0757. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). /KARL J PUTTLITZ/ Primary Examiner, Art Unit 1646
Read full office action

Prosecution Timeline

Apr 14, 2023
Application Filed
Nov 15, 2025
Non-Final Rejection — §102, §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

1-2
Expected OA Rounds
69%
Grant Probability
87%
With Interview (+18.2%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 1409 resolved cases by this examiner. Grant probability derived from career allow rate.

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