Prosecution Insights
Last updated: October 25, 2026
Application No. 18/857,347

FGFR2 INHIBITOR COMPOUNDS

Non-Final OA §112
Filed
Oct 16, 2024
Priority
Apr 25, 2022 — EU 22382389.9 +2 more
Examiner
FETTEROLF, BRANDON J
Art Unit
Tech Center
Assignee
Eli Lilly and Company
OA Round
1 (Non-Final)
52%
Grant Probability
Moderate
1-2
OA Rounds
1y 6m
Est. Remaining
70%
With Interview

Examiner Intelligence

Grants 52% of resolved cases
52%
Career Allowance Rate
116 granted / 225 resolved
-8.4% vs TC avg
Strong +18% interview lift
Without
With
+18.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
70 currently pending
Career history
285
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
28.8%
-11.2% vs TC avg
§102
20.8%
-19.2% vs TC avg
§112
29.1%
-10.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 225 resolved cases

Office Action

§112
DETAILED ACTION 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 of the following species PNG media_image1.png 150 362 media_image1.png Greyscale wherein the variables of the generic compound of claim 1 are defined as follows: PNG media_image2.png 408 593 media_image2.png Greyscale in the reply filed on 9/24/2026 is considered to be without traverse since Applicants to not specifically argue the species election. Upon review of the elected species and expansion of said species for prior art, the examiner has withdrawn the species election. Claims 1, 3, 5-7, 10-11, 13, 15, 18, 20, 22, 24-27, 30, 34-35, 37-38, 40, 43-46 and 49 are currently pending and under consideration. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statement filed on 10/16/2024 is acknowledged and has been considered except where lined through. 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, 3, 5-7, 10-11, 13, 15, 18, 20, 22, 24-27, 30, 34-35, 37-38, 40, 43-46 and 49 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. Regarding claim 1, claim 1 recites the variable R9A, but does not appear to define what R9A encompasses. There is a portion of the claim which discusses, for example, R9 being fused with R9A to form CH2 or CH2-CH2. However, there is nothing within the claim or specification which defines what R9A encompasses. Accordingly, one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. Note: Claims 3, 5-7, 10-11, 13, 15, 18, 20, 22, 24-27, 30, 34-35, 37-38, 40, 43-46 and 49 have been included in the rejection since they depend and/or include claim 1, but do not define what is encompassed by R9A. Conclusion Claims 1, 3, 5-7, 10-11, 13, 15, 18, 20, 22, 24-27, 30, 34-35, 37-38, 40, 43-46 and 49 are free of the prior art. The closest prior art is considered to be WO2020131627A1 to Array Biopharma, INC (2020-06-25, IDS) whom teaches compounds of the general formula I: PNG media_image3.png 101 311 media_image3.png Greyscale which are inhibitors of FGFR1, FGFR2, FGFR3, and/or FGFR4 which are useful for treating diseases and disorders mediated by FGFR1, FGFR2, FGFR3, and/or FGFR4 (Abstract). With regards to Ring A, the WO document teaches that ring A includes, but is not limited to, pyrazoles and/or triazolyl compounds (see for example paragraphs 00150 and 00152). With regards to ring B, the WO document teaches ring B includes, but is not limited to, azetidinyl, pyrrolidinyl, piperidinyl or a piperazinyl (see paragraphs 00173-00181). Regarding ring C, the WO document teaches that ring C includes, but is not limited to, alkylcyclo compounds, as well as, heterocycle compounds such as PNG media_image4.png 89 51 media_image4.png Greyscale or PNG media_image5.png 84 31 media_image5.png Greyscale (see paragraphs 00209-00216). For example, the WO document teaches compounds having the structure: PNG media_image6.png 116 324 media_image6.png Greyscale (cmpd 53) or PNG media_image7.png 150 299 media_image7.png Greyscale (cmpd 84). The prior art differs from the instantly claimed compound in that L is absent and ring C is an oxygen containing heterocycle and there is no teaching or suggestion in the prior art to make this modification or substitution in order to arrive at the instantly claimed compounds. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRANDON J FETTEROLF whose telephone number is (571)272-2919. The examiner can normally be reached M-F 6AM-4PM. 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 S 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. BRANDON J. FETTEROLF, PHD Primary Patent Examiner Art Unit 1626 /BRANDON J FETTEROLF/Primary Examiner, Art Unit 1626
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Prosecution Timeline

Oct 16, 2024
Application Filed
Oct 07, 2026
Non-Final Rejection mailed — §112 (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

1-2
Expected OA Rounds
52%
Grant Probability
70%
With Interview (+18.5%)
3y 6m (~1y 6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 225 resolved cases by this examiner. Grant probability derived from career allowance rate.

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