Prosecution Insights
Last updated: July 17, 2026
Application No. 18/710,020

METHODS FOR ENHANCING ADOPTIVE CELL TRANSFER IMMUNOTHERAPIES

Non-Final OA §112
Filed
May 14, 2024
Priority
Nov 15, 2021 — provisional 63/279,398 +1 more
Examiner
KIEFER, DALTON EDWARD
Art Unit
1652
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Hansa Biopharma AB
OA Round
1 (Non-Final)
Grant Probability
Favorable
1-2
OA Rounds

Examiner Intelligence

Grants only 0% of cases
0%
Career Allowance Rate
0 granted / 0 resolved
-60.0% vs TC avg
Minimal +0% lift
Without
With
+0.0%
Interview Lift
resolved cases with interview
Typical timeline
Avg Prosecution
21 currently pending
Career history
14
Total Applications
across all art units

Statute-Specific Performance

§103
66.7%
+26.7% vs TC avg
§102
8.3%
-31.7% vs TC avg
§112
2.8%
-37.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 0 resolved cases

Office Action

§112
DETAILED ACTION Claims 1, 3, and 7-14 are pending. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . A preliminary amendment filed on 01/09/2025 amending claims 3, 4, 7 and 9-12 and cancelling claims 5 and 15 is acknowledged. A preliminary amendment filed on 06/18/2026 cancelling claims 2, 4 and 6 is acknowledged. Applicant’s election of Group I, claims 1, 3, 7-14, drawn in part to a method of improving the benefit to a patient of an adoptive cell transfer immunotherapy that targets an immunoglobulin light chain comprising administering a protein that has IgG cysteine protease or IgG endoglycosidase activity in combination with the adoptive cell transfer immunotherapy in the reply filed on 06/18/2026 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, 3 and 7-14 are at issue and will be examined only to the extent they encompass the elected invention. Priority This application is a 371 of PCT/EP2022/081841 filed on 11/14/2022 and claims domestic priority 35 U.S. C. 119(e) to provisional application No. 63/279,398 filed on 11/15/2021. Information Disclosure Statement The information disclosure statement (IDS) submitted on 09/11/2024 is acknowledged. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Rejections - 35 USC § 112(b) 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, 3, and 7-14 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. Claim 1 (claims 3, 7-14 depending therefrom) is indefinite in the recitation of “improving the benefit to a patient” for the following reason. It is unclear what qualifies as a benefit to the patient. Correction is required. Claim 7 is indefinite in the recitation of “wherein the adoptive cell transfer immunotherapy that targets an immunoglobulin light chain comprises administration of T-cells, natural killer cells or dendritic cells expressing a chimeric antigen receptor or a T-cell receptor”. Given the position of the commas and the use of the term “or”, it is unclear what the options are. For example, the options could be (i) T-cells, (ii) natural killer cells, (iii) dendritic cells expressing a chimeric antigen receptor and (iv) a T-cell receptor. Alternatively, the options could be (i) T-cells, (ii) natural killer cells, and (iii) dendritic cells expressing a chimeric antigen receptor or a T-cell receptor. Still further, the options could be (i) T-cells, (ii) natural killer cells, and (iii) dendritic cells, such that any of the options of cells are expressing a chimeric antigen receptor or a T-cell receptor. As such, the metes and bounds of the claim cannot be determined. Correction is required. Claims 8, 11-12 and 14 are indefinite in the recitation of the phrase “such as” for the following reason. It is unclear whether the limitations following the phrase are part of the claimed invention. See MPEP § 2173.05(d). As such, the metes and bounds of the claims cannot be determined. Correction is required. Claim 11 recites the limitation "wherein the disease" in the method of claim 1. There is insufficient antecedent basis for this limitation in the claim. Correction is required. Claim 14 is indefinite in the recitation of a broader range followed by a narrow range “at least 85%...99%”. Correction is required. Closest Prior Art The prior are does not teach a method of improving the benefit to a patient of an adoptive cell transfer immunotherapy that targets an immunoglobulin light chain comprising administering a protein that has IgG cysteine protease or IgG endoglycosidase activity in combination with the adoptive cell transfer immunotherapy. While Scheinberg et al. (WO2021021989A1, published 02/04/2021, Applicant Cited Reference in IDS filed on 09/11/2024, #4) teaches the use of CAR T-cells for adoptive cell transfer, which co-expression of an IgG degrading enzyme, wherein the IgG degrading enzyme is selected from IdeS, IdeZ, EndoS and SpeB (see pg. 2, second paragraph, Summary of the Invention), it does not provide the limitation of the CAR T-cells targeting immunoglobulin light chain. Vera et al. (Blood, Vol. 108, 12, 2006, published December 2006, Applicant Cited Reference in IDS filed on 09/11/2024, #16) teaches adoptive cell transfer immunotherapy using T lymphocytes redirected against the κ light chain of human immunoglobulin to kill B lymphocyte-derived malignant cells. However, Vera et al. does not teach the combination of adoptive cell transfer immunotherapy that targets an immunoglobulin light chain with an IgG cysteine protease or IgG endoglycosidase. The combination of adoptive cell transfer immunotherapy with administering a protein with IgG cysteine protease or IgG endoglycosidase activity is novel and combination of Scheinberg et al. and Vera et al. would be the result of hindsight. Conclusion No claim is in condition for allowance. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DALTON KIEFER, PhD whose telephone number is (571)272-1235. The examiner can normally be reached M-F 7:30-5 EST. 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, Robert Mondesi can be reached at (408)918-7584. 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. /DALTON KIEFER, PhD/Examiner, Art Unit 1652 /ROBERT B MONDESI/Supervisory Patent Examiner, Art Unit 1652
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Prosecution Timeline

May 14, 2024
Application Filed
Jul 07, 2026
Non-Final Rejection mailed — §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
Grant Probability
Low
PTA Risk
Based on 0 resolved cases by this examiner. Grant probability derived from career allowance rate.

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