Office Action Predictor
Last updated: April 17, 2026
Application No. 17/052,925

COMPOUNDS COMPRISING A LINKER FOR INCREASING TRANSCYCLOOCTENE STABILITY

Non-Final OA §112
Filed
Nov 04, 2020
Examiner
RAMOS LEWIS, JOSMALEN MILAGROS
Art Unit
1621
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Tagworks Pharmaceuticals B.V.
OA Round
4 (Non-Final)
54%
Grant Probability
Moderate
4-5
OA Rounds
2y 6m
To Grant
78%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allow Rate
30 granted / 56 resolved
-6.4% vs TC avg
Strong +24% interview lift
Without
With
+24.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
31 currently pending
Career history
87
Total Applications
across all art units

Statute-Specific Performance

§103
51.8%
+11.8% vs TC avg
§102
24.4%
-15.6% vs TC avg
§112
14.7%
-25.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 56 resolved cases

Office Action

§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 . DETAILED ACTION Review of Claim Status Claims 1-3, 5-8, 10-17, and 19-21 are pending. Priority Status PNG media_image1.png 96 410 media_image1.png Greyscale Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55; the EFD for this application is 05/04/2018. Information Disclosure Statement Examiner acknowledged IDS(s) submission (04/24/2025) in prior Office Action. Drawings Examiner acknowledged submission (11/04/2020) in prior Office Action. 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 1-2, 5-8, 10-17, and 19-21 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. Furthermore, Claim 1 have the following issues: The phrases “pteridine family of drugs”, analogs of SN-38,” “thiol groups or derivatives thereof,” and “groups reactive in the Pictet- Spengler ligation and hydrazino- Pictet- Spengler (HIPS) ligation,” renders the claims indefinite because it is unclear whether the limitations following the phrase is a necessary part of the claimed invention and what precise structures read on such limitations.. See MPEP § 2173.05(h).II. For example, what is the structure of a “reactive” group, or a “derivative”. There is no guidance provided by the specification to the structure of these terms. See also, claim 10 – “family of drugs”, “peteridine family”, “analogs” – which drugs are in the family, structurally what is an analog and where does the structure begin and end? One cannot make this determination and there is more than one interpretation. Claim Objection Claim 3 is 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. Conclusions Claims 1-2, 5-8, 10-17, and 19-21 are rejected. Claim 3 is objected. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Josmalen M. Ramos-Lewis whose telephone number is (571)272-0084. The examiner can normally be reached M-F 9:30-5:30 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, Clinton A. Brooks can be reached at (571) 270-7682. 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. Josmalen M. Ramos-Lewis, Ph.D. Patent Examiner Art Unit 1621 /CLINTON A BROOKS/Supervisory Patent Examiner, Art Unit 1621
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Prosecution Timeline

Nov 04, 2020
Application Filed
Feb 16, 2024
Non-Final Rejection — §112
May 22, 2024
Response Filed
Jun 14, 2024
Final Rejection — §112
Dec 23, 2024
Request for Continued Examination
Jan 06, 2025
Response after Non-Final Action
Jan 29, 2025
Interview Requested
Feb 11, 2025
Examiner Interview Summary
Apr 02, 2025
Examiner Interview Summary
May 08, 2025
Non-Final Rejection — §112
Nov 14, 2025
Response Filed
Dec 01, 2025
Interview Requested
Dec 09, 2025
Examiner Interview Summary
Jan 13, 2026
Non-Final Rejection — §112
Mar 26, 2026
Response Filed

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
54%
Grant Probability
78%
With Interview (+24.4%)
2y 6m
Median Time to Grant
High
PTA Risk
Based on 56 resolved cases by this examiner. Grant probability derived from career allow rate.

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