Prosecution Insights
Last updated: October 02, 2026
Application No. 18/290,668

NOVEL CHIMERIC ANTIGEN RECEPTOR AND IMMUNE CELLS EXPRESSING SAME

Non-Final OA §102
Filed
Jan 19, 2024
Priority
Jul 21, 2021 — RE 10-2021-0096085 +1 more
Examiner
NATARAJAN, MEERA
Art Unit
Tech Center
Assignee
Korea Research Institute of Bioscience and Biotechnology
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
6m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
477 granted / 763 resolved
+2.5% vs TC avg
Strong +18% interview lift
Without
With
+18.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
42 currently pending
Career history
791
Total Applications
across all art units

Statute-Specific Performance

§101
3.5%
-36.5% vs TC avg
§103
27.5%
-12.5% vs TC avg
§102
16.5%
-23.5% vs TC avg
§112
28.1%
-11.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 763 resolved cases

Office Action

§102
DETAILED ACTION Applicants claim amendments filed 1/19/2024 is acknowledged and entered into the record. Accordingly, Claims 1-16 are pending and will be examined on the merits. 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 § 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. Claim(s) 1-16 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by June et al. (PgPub 2019/0367610, cited on IDS filed 1/19/2024). The claims are drawn to a chimeric antigen receptor (CAR) comprising an extracellular domain (extracellular binding domain) comprising an antigen-binding domain; a transmembrane domain; and as an intracellular signaling domain comprising an intracellular domain of the receptor comprising a death domain. The claims are further drawn to a polynucleotide comprising a base sequence encoding said CAR, an expression vector comprising said polynucleotide and an immune cell expressing said CAR and a second CAR targeting an antigen expressed in a cancer cell and a method of treatment comprising administering said immune cell to a subject in need thereof. June et al. teach chimeric antigen receptors (CAR) comprising an extracellular domain, a transmembrane domain and an intracellular domain, also referred to as a cytoplasmic domain. June et al. disclose the extracellular domain includes a CD8a hinge domain and a spacer domain (see paragraphs [0093], [0094, [0096]) and the transmembrane domain is derived from the α, β, or ζ chain of a T-cell receptor, CD28, CD3 epsilon, or CD45 (see paragraph [0107]). June et al. teach the extracellular domain contains an antigen targeting domain targeting tumor-associated antigens (TAA) which is not unique to a tumor cell and instead is also expressed on a normal cell (see paragraph [0101]). June et al. disclose several target antigens, however the preferred antigen binding domain portion of the CAR targets include EGFRvIII (see paragraph [0102]). June et al. teach the cytoplasmic domain of the CAR comprises a death domain of receptors such as TNFR1, p75NTR, DR3, DR4/TrailR1, DR5/TrailR2, and DR6 (see paragraph [0122]-[0126]). June et. disclose a single chain variable fragment (scFv) as the antigen binding domain (see paragraphs [0028] and [0117]). June et al. further disclose the feature wherein the T-cell expresses a plurality of CARs, and the plurality of CARs comprise an extracellular domain comprising antigen-binding domains that bind to different types of antigens (such as HER2), a transmembrane domain, and a cytoplasmic domain (see paragraphs [0019], [0096], [0105], [0117]). June et al. discloses a dual CAR where a T-cell is genetically modified to express an inhibitory CAR and a therapeutic tumor directed CAR and methods of treatment comprising administering the CAR to a subject in need thereof, (see paragraphs [0018] and [0039]). June et al. teach each and every limitation of the instant claims. Conclusion Claims 1-16 are rejected. No Claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MEERA NATARAJAN whose telephone number is (571)270-3058. The examiner can normally be reached M-F 9AM - 5PM. 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, JULIE WU can be reached at 571-272-5205. 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. /Meera Natarajan/Primary Examiner, Art Unit 1643
Read full office action

Prosecution Timeline

Jan 19, 2024
Application Filed
Sep 14, 2026
Non-Final Rejection mailed — §102 (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
62%
Grant Probability
80%
With Interview (+18.0%)
3y 2m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 763 resolved cases by this examiner. Grant probability derived from career allowance rate.

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