Prosecution Insights
Last updated: October 25, 2026
Application No. 18/757,218

MULTI-SPECIFIC LIGAND BINDERS

Non-Final OA §102§DP
Filed
Jun 27, 2024
Priority
Jan 05, 2018 — provisional 62/614,267 +3 more
Examiner
PAK, MICHAEL D
Art Unit
1674
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
City of Hope
OA Round
1 (Non-Final)
59%
Grant Probability
Moderate
1-2
OA Rounds
1y 4m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
417 granted / 711 resolved
-1.4% vs TC avg
Strong +30% interview lift
Without
With
+29.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
24 currently pending
Career history
736
Total Applications
across all art units

Statute-Specific Performance

§101
7.9%
-32.1% vs TC avg
§103
22.2%
-17.8% vs TC avg
§102
21.7%
-18.3% vs TC avg
§112
36.5%
-3.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 711 resolved cases

Office Action

§102 §DP
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 . Election/Restrictions Applicant’s election of Group I in the reply filed on August 3, 2026 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Claims 1-15 are pending. Claims 4, 10-14 are withdrawn. Claims 1-3, 5-9, 15 are examined. 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(s) 1-3, 5-9, 15 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Adams et al.(US 2012/0316324) . Adams disclose multivalent antibody fusion protein comprising VL-CL or VH-CH bound to the N-terminus of the single domain antibody (Figures 1-2; para 140, 289). VL-CL and VH-CH for a Fab domain (para 4-5, 9-10, 12, 60-78, 104, 106, 180, 182). The interaction of VL-CL and VH-CH domain are non-covalent interaction and the linking of the domains result in covalent interaction (para 39, 50, 106). The peptide linkers sequences are bound to the Fab with variable length and can be same or different (para 50-53, 55, 357-363; Table 1). The fusion Fabs binds CD20 and CD3 (paragraph 15, 18, 24,26, 27, 107). The single domain antibody are interleukin binding domain (para 22-23). The pharmaceutical composition comprises the fusion protein and pharmaceutically acceptable excipient (paragraph 194-199). 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 1-3, 5-9, 15 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-10 of U.S. Patent No. 12,060,435. Although the claims at issue are not identical, they are not patentably distinct from each other. Claims 1-10 of U.S. Patent No. 12,060,435 anticipate pending claims. No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL D PAK whose telephone number is (571)272-0879. The examiner can normally be reached on flexible time. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Vanessa Ford can be reached on 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 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). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MICHAEL D PAK/Primary Examiner, Art Unit 1674
Read full office action

Prosecution Timeline

Jun 27, 2024
Application Filed
Oct 02, 2026
Non-Final Rejection mailed — §102, §DP (current)

Precedent Cases

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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
59%
Grant Probability
88%
With Interview (+29.9%)
3y 9m (~1y 4m remaining)
Median Time to Grant
Low
PTA Risk
Based on 711 resolved cases by this examiner. Grant probability derived from career allowance rate.

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