Prosecution Insights
Last updated: July 17, 2026
Application No. 18/040,383

LOW MOLECULAR WEIGHT PROTEIN DEGRADERS AND THEIR APPLICATIONS

Final Rejection §102§112
Filed
Feb 02, 2023
Priority
Aug 03, 2020 — PL PCT/PL2020/000066 +1 more
Examiner
TRAN, SUSAN T
Art Unit
1615
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Captor Therapeutics S A
OA Round
2 (Final)
63%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
642 granted / 1025 resolved
+2.6% vs TC avg
Strong +36% interview lift
Without
With
+35.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
37 currently pending
Career history
1069
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
78.4%
+38.4% vs TC avg
§102
12.8%
-27.2% vs TC avg
§112
4.2%
-35.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1025 resolved cases

Office Action

§102 §112
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 without traverse of Group I in the reply filed on 09/18/2025 is acknowledged. Applicant also elected compound PNG media_image1.png 181 377 media_image1.png Greyscale without traverse. This compound appears to be compound ID 3 from claim 13. Claim 20 has been amended to depend from Claim 1, hence, the rejoinder. Claims 2-5, 8, 10, 11, 16, 17, 21-49, 51, 52, 54, 56, 59, 60, 62, 67-69 and 71-76 withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected inventions and species, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 09/18/2025. 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, 6, 7, 9, 12-15, 18-20, 22-36, 41-45, 50, 53, 55, 57, 58, 61, 63-66 and 70 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 recited components L, R”, R14, R15, Rg, Rh, Ra, Rb, Rc, X, R1, R2, R3, R5, R6 with the phrase “selected from”. If Markush language is intended, the proper Markush language should read: selected from the group consisting of. Claims 13, 18 and 31 were amended to delete all compounds, which makes the claim indefinite in view of the phrase “wherein the compound is selected from:”. Claims 22-35 recite the limitation “[t]he method of claim 20, wherein R” in line 1. There is insufficient antecedent basis for this limitation in the claim. Claim 20 was amended to delete the compound. Claim 36 recites the limitation “[t]he method of claim 20, wherein the compound is selected from” in line 1. There is insufficient antecedent basis for this limitation in the claim. Claim 20 was amended to delete the compound. 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 1, 6, 7, 9, 12, 14, 15, 19, 20, 22-36, 41-45, 50, 53, 55, 57, 58, 61, 63-66 and 70 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by WO 2019/038717 A1 (WO ‘717). WO ‘717 teaches a compound of Formula (I) or pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof for the treatment of cancer. See Abstract and pages 8, and 10-16. See also pages 3-6 for compound recited in claim 1. Allowable Claims Claims 13 and 18 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to SUSAN T TRAN whose telephone number is (571)272-0606. The examiner can normally be reached Monday-Friday, 8:30 am-5:30 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, ROBERT A. WAX can be reached at 571-272-0623. 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. /SUSAN T TRAN/Primary Examiner, Art Unit 1615
Read full office action

Prosecution Timeline

Feb 02, 2023
Application Filed
Dec 02, 2025
Non-Final Rejection mailed — §102, §112
Apr 30, 2026
Response Filed
Jul 03, 2026
Examiner Interview (Telephonic)
Jul 15, 2026
Final Rejection mailed — §102, §112 (current)

Precedent Cases

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Patent 12653791
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Patent 12653789
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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
63%
Grant Probability
98%
With Interview (+35.6%)
3y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1025 resolved cases by this examiner. Grant probability derived from career allowance rate.

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