Prosecution Insights
Last updated: May 29, 2026
Application No. 18/237,989

PYRIDINYLSULFONAMIDE COMPOUNDS AND THEIR USE IN THERAPY

Non-Final OA §112§DOUBLEPATENT
Filed
Aug 25, 2023
Priority
Aug 26, 2022 — provisional 63/401,491
Examiner
SEITZ, ANTHONY JOSEPH
Art Unit
1629
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Hotspot Therapeutics Inc.
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
117 granted / 170 resolved
+8.8% vs TC avg
Strong +28% interview lift
Without
With
+28.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
68 currently pending
Career history
240
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
36.4%
-3.6% vs TC avg
§102
14.2%
-25.8% vs TC avg
§112
7.7%
-32.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 170 resolved cases

Office Action

§112 §DOUBLEPATENT
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 Election of Species and Status of the Claims Applicant’s election of PNG media_image1.png 170 236 media_image1.png Greyscale as the single specific compound and colorectal cancer as the single disease mediated by MALT1 in the response filed on February 23rd 2026 is acknowledged. Claims 1-3, 9-12, 15-20, 22-26, 29-31, 49-52, 56-62, and 64-72 are pending. Claims 25-26, 49, and 59-62 are withdrawn from further consideration as being directed towards nonelected species until a generic claim has been found allowable. Claims 1-3, 9-12, 15-20, 22-24, 29-31, 50-52, 56-58, and 64-72 are examined on their merits. Priority Applicant’s claim for the benefit of a prior-filed application under 35 U.S.C. 120 is acknowledged. Applicant has complied with all conditions for receiving the benefit of an earlier filing date under 35 U.S.C. 120 based on the date of the provisional application 63/401,491 filed on August 26th 2022. Information Disclosure Statement The Information Disclosure Statement filed on November 14th 2024 is in compliance with the provisions of 37 CFR 1.97 and has been considered in full. A signed copy of references cited from the IDS is included with this Office Action. 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. Claim 50 is 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 50 is indefinite for the reference to “Table 1 or 2.” See MPEP 2173.05(s): Where possible, claims are to be complete in themselves. Incorporation by reference to a specific figure or table "is permitted only in exceptional circumstances where there is no practical way to define the invention in words and where it is more concise to incorporate by reference than duplicating a drawing or table into the claim. Incorporation by reference is a necessity doctrine, not for applicant’s convenience." Ex parte Fressola, 27 USPQ2d 1608, 1609 (Bd. Pat. App. & Inter. 1993) (citations omitted). Appropriate correction is required. Nonstatutory 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 1-3, 9-12, 15-20, 22-24, 29-31, 50-52, 56-58, and 64-72 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-2, 7-9, 12, 19-23, 25, 28-29, 35-37, 44-48, 66-68, 72-78, and 80-81 of copending Application No. 18/455,767 in view of Brown (Brown, Bioisosteres in Medicinal Chemistry, 2012). The reference application teaches compound I-14: PNG media_image2.png 109 214 media_image2.png Greyscale (Reference Application, Claim 66, Compound I-14). Compound I-14 differs from applicant’s elected species only in the switching of the pyrazole and pyridine: PNG media_image1.png 170 236 media_image1.png Greyscale PNG media_image3.png 109 214 media_image3.png Greyscale . One of ordinary skill in the art would have a reasonable expectation of success in switching the order of the pyridine and pyrazole groups, because the two groups are known bioisosteres in the field of drug discovery (Brown, pg. 61). Thus, one of ordinary skill in the art would reasonably expect similar biological activity between the compounds of the instant application and those of the reference application. The instant claims are thereby prima facie obvious over the reference claims. This is a provisional nonstatutory double patenting rejection. Closest Prior Art The closest art is Saeed (US 2024/0092770 A1 effectively filed on August 15th 2022), who teaches compounds including: PNG media_image4.png 146 283 media_image4.png Greyscale (Saeed, pg. 5). Saeed’s compounds differ from applicant’s compounds in the identity of the rings in the A1 and A2 locations. As Saeed’s compounds serve as RBM39 inhibitors and applicant’s compounds act as inhibitors of MALT1, the modifications necessary to convert from one to the other would not be obvious to one of ordinary skill in the art. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Anthony Seitz whose telephone number is (703)756-4657. The examiner can normally be reached 7:30 AM ET - 5:00 PM ET M-F. 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, Jeffrey Lundgren can be reached at (571)272-5541. 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. /A.J.S./Examiner, Art Unit 1629 /JEFFREY S LUNDGREN/Supervisory Patent Examiner, Art Unit 1629
Read full office action

Prosecution Timeline

Aug 25, 2023
Application Filed
Mar 27, 2026
Non-Final Rejection mailed — §112, §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12637424
A PHARMACEUTICAL SALT OF AN ARYLPYRROLE DERIVATIVE
3y 2m to grant Granted May 26, 2026
Patent 12630559
SPIROCYCLIC-SUBSTITUTED 6,7-DIHYDRO-PYRANO[2,3-d]PYRIMIDINE INHIBITORS OF KRAS G12C MUTANT
2y 12m to grant Granted May 19, 2026
Patent 12630546
RNF4 TARGETING COMPOUNDS AND USES THEREOF
2y 8m to grant Granted May 19, 2026
Patent 12606537
THIOPHENE DERIVATIVES
3y 11m to grant Granted Apr 21, 2026
Patent 12606550
METHODS FOR SYNTHESIS OF CHK1 INHIBITORS
3y 6m to grant Granted Apr 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
69%
Grant Probability
97%
With Interview (+28.3%)
3y 5m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 170 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month