Prosecution Insights
Last updated: October 27, 2026
Application No. 18/562,587

HETEROCYCLIC COMPOUNDS AND METHODS OF PREPARATION THEREOF

Final Rejection §102
Filed
Nov 20, 2023
Priority
May 26, 2021 — provisional 63/193,062 +3 more
Examiner
NOLAN, JASON MICHAEL
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Medical College of Wisconsin Inc.
OA Round
2 (Final)
67%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
39%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
257 granted / 386 resolved
+6.6% vs TC avg
Minimal -27% lift
Without
With
+-27.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
30 currently pending
Career history
432
Total Applications
across all art units

Statute-Specific Performance

§101
4.2%
-35.8% vs TC avg
§103
25.3%
-14.7% vs TC avg
§102
21.3%
-18.7% vs TC avg
§112
32.8%
-7.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 386 resolved cases

Office Action

§102
DETAILED ACTION A non-final Office action was mailed 16 April 2026 (“Office Action”). Applicant’s reply to the Office Action was received 17 August 2026 (“Reply”). Status of the Claims The listing of claims filed with the Reply has been examined. Claims 21–31 and 33–35 are pending. Claims 1–20 and 32 are canceled. Claims 21, 22, 33, and 34 are amended. Status of Rejections and Objections The text of those sections of Title 35, U.S. Code and/or text providing the basis for non-statutory double patenting rejections not included in this action are set forth in the Office Action. Unless repeated herein, any objection or rejection in the Office Action is withdrawn. Information Disclosure Statement The information disclosure statement (IDS) submitted on 20 April 2026 is acknowledged and has been considered. Claim Objections Claim 22 is objected to for minor informalities. Claim 22 was amended to recite: “R2 is selected from the group consisting of C1-C6 alkyl, C1-C6 alkyl, and CN.” The second recitation of C1-C6 alkyl is redundant. Appropriate correction is required. Claim Rejections - 35 U.S.C. § 102 (i) Claim 21 is rejected under 35 U.S.C. §§ 102(a)(1) and (a)(2) as being anticipated by US 8,912,220 (“Elder”). Elder discloses compounds (e.g., those shown below) that anticipate instant Formula I: R1, R3, R4, and R5 (Z) = alkyl; R2 = aryl or heteroaryl; and a, b, c, d, e, and f = H. PNG media_image1.png 210 348 media_image1.png Greyscale ; PNG media_image2.png 210 343 media_image2.png Greyscale ; PNG media_image3.png 210 351 media_image3.png Greyscale ; PNG media_image4.png 210 346 media_image4.png Greyscale ; PNG media_image5.png 210 348 media_image5.png Greyscale (Elder, col. 22). (ii) Claims 21–26 are rejected under 35 U.S.C. § 102(a)(2) as being anticipated by WO 2022/104475, which claims priority to US Prov. App. Serial No. 63/115,991, filed 19 November 2020 (“Hagel”). Hagel discloses compounds of Formula (X) and (XI) (shown below) that anticipate instant Formula I: R1, R3, R4, and R5 (Z) = H or alkyl; R2 = CN; and a, b, c, d, e, and f = H. PNG media_image6.png 106 288 media_image6.png Greyscale (Hagel, ¶25). Allowable Subject Matter Claims 34 and 35 are allowed. Claims 27–31 and 33 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. Conclusion Applicant’s amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 C.F.R. § 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 C.F.R. § 1.17(a)) pursuant to 37 C.F.R. § 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Communication Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jason Nolan at (571) 272-2480. The examiner can normally be reached Monday through Friday between 9:00–5:00. 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 submit an Automated Interview Request: http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Adam Milligan, can be reached on 571-270-7674. /JASON M. NOLAN/Patent Examiner, Art Unit 1623 /ADAM C MILLIGAN/Supervisory Patent Examiner, Art Unit 1623
Read full office action

Prosecution Timeline

Nov 20, 2023
Application Filed
Apr 16, 2026
Non-Final Rejection mailed — §102
Aug 17, 2026
Response Filed
Oct 01, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

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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
67%
Grant Probability
39%
With Interview (-27.2%)
2y 8m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 386 resolved cases by this examiner. Grant probability derived from career allowance rate.

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