Prosecution Insights
Last updated: April 19, 2026
Application No. 18/183,042

ENGINEERED ANTIBODIES AND USES THEREOF

Non-Final OA §DP
Filed
Mar 13, 2023
Examiner
CHEONG, CHEOM-GIL
Art Unit
1645
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Regents of the University of California
OA Round
3 (Non-Final)
65%
Grant Probability
Moderate
3-4
OA Rounds
3y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 65% of resolved cases
65%
Career Allow Rate
112 granted / 173 resolved
+4.7% vs TC avg
Strong +55% interview lift
Without
With
+54.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
31 currently pending
Career history
204
Total Applications
across all art units

Statute-Specific Performance

§101
2.8%
-37.2% vs TC avg
§103
24.4%
-15.6% vs TC avg
§102
15.4%
-24.6% vs TC avg
§112
36.4%
-3.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 173 resolved cases

Office Action

§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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 1/7/2026 has been entered. Claim Status Claims 1-95 and 97-100 were canceled. Claims 96 and 101-117 are pending and under consideration. Withdrawn Rejections Rejection of Claim(s) 96 and 101-105 under 35 U.S.C. 102(a)(1) and 102(a)(2) as being anticipated by Rhoden et al (The Journal of Biological chemistry, vol. 291, No. 21, 11337-11347, May 20, 2016; IDS) as evidenced by Boon et al (Cancer Research 62, 5126-5128, September 15, 2002) is withdrawn. Applicant amended the claim 96 to recite specific effector antigen, thereby obviating this rejection/objection. NEW - Claim Objections (based on reconsideration) Claims 114 and 117 are objected to because of the following informalities: “the second antigen binding region” in line 1 should read “wherein the second antigen binding region”. Appropriate correction is required. Claim 115 is objected to because of the following informalities: “the second antigen binding region engineered antibody” should read “the second antigen binding region of the engineered antibody”. Appropriate correction is required. Claims 107-110, 112-113 and 116 are objected to as being dependent from the rejected base claim. MAINTAINED - 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 96 and 101-106 and 111 are rejected on the ground of nonstatutory double patenting as being unpatentable over claim 17 of U.S. Patent No. 11702480 (hereinafter patent’480; IDS). Although the claims at issue are not identical, they are not patentably distinct from each other because of the following reasons. Claim 17 of patent’480 claims as follows: PNG media_image1.png 712 839 media_image1.png Greyscale The density ratio of the guide antigen to effector antigen and copy number of the guide antigen claimed by instant claims 101-104 are overlapping with the claimed density ratio and copy number of patent’480. It is well known in the art that ICAM-1, EphA2 and ALCAM are internalizing receptors. Response to Arguments In the response filed on 1/7/2026, at page 7, Applicant requested that NSDP rejection be held in abeyance. Conclusion No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHEOM-GIL CHEONG whose telephone number is (571)272-6251. The examiner can normally be reached Monday - Friday 9:00 am - 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, Daniel Kolker can be reached at 571-272-3181. 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. /CHEOM-GIL CHEONG/Examiner, Art Unit 1645 /DANIEL E KOLKER/Supervisory Patent Examiner, Art Unit 1645
Read full office action

Prosecution Timeline

Mar 13, 2023
Application Filed
Jan 28, 2025
Non-Final Rejection — §DP
Aug 05, 2025
Response Filed
Aug 29, 2025
Final Rejection — §DP
Jan 07, 2026
Request for Continued Examination
Jan 13, 2026
Response after Non-Final Action
Jan 26, 2026
Non-Final Rejection — §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

3-4
Expected OA Rounds
65%
Grant Probability
99%
With Interview (+54.9%)
3y 3m
Median Time to Grant
High
PTA Risk
Based on 173 resolved cases by this examiner. Grant probability derived from career allow rate.

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