Prosecution Insights
Last updated: April 19, 2026
Application No. 18/486,889

SALT FORMS OF IRAK4 DEGRADERS

Non-Final OA §112
Filed
Oct 13, 2023
Examiner
ISMAIL, REHANA
Art Unit
1625
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Kymera Therapeutics Inc.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
3y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
56 granted / 71 resolved
+18.9% vs TC avg
Strong +29% interview lift
Without
With
+29.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
41 currently pending
Career history
112
Total Applications
across all art units

Statute-Specific Performance

§101
4.0%
-36.0% vs TC avg
§103
27.3%
-12.7% vs TC avg
§102
20.0%
-20.0% vs TC avg
§112
25.5%
-14.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 71 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 . In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Current Status of 18/486,889 This office action is in response to the amended claims on 04/05/2024. Claims 1,5-9 and 56-60 are currently amended. Claims 1,5-9 and 56-60 are examined in this office action. Priority The effective filing date is 10/13/2022 since the instant claims find support in provisional application no. 63/379,391. Information Disclosure Statement The information disclosure statement (IDS) was submitted on 01/04/2024. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Objections to Specification The specification , on page 108, paragraph [00558] contains hyperlink “[https://clinicaltrials.gov/ ct2/results?term=chimeric+antigen+receptors&pg= 1].” Reference incorporated by hyperlinks or other form of browser executable code is not permitted. Please delete hyperlink from the specification to render-moot this objection. 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 7 and 60 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. The term “substantially” in claim 7 is a relative term which renders these claims indefinite. The term “substantially” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. As drafted, the term “substantially” renders the metes and bounds of claims 7 undefined (hence rendering claims 7 indefinite) since the artisan has no idea by which objective standard “substantially” should be measured. Claim 60 recites the limitation of the phrase “including…” The examiner does not know if the phrase “including” further limits the embodiments in the claim or list the different embodiments of the claims. Moreover, the reader does not know if the limitations following “including” are merely exemplary or are required limitations of the claim. As drafted, the term “including” renders the metes and bounds of claim 60 undefined hence rendering claim 60 indefinite. Please delete all occurrences of “including” and either delete: 1) the broad limitations immediately preceding “including” or 2) the limitations immediately following “including”. Claims 60 contains numerous occurrences of limitations within parentheticals. For example, “ … glomerulonephritis (with and without nephrotic syndrome, optionally including idiopathic nephrotic syndrome or minal change nephropathy),…” ; “… asthma (allergic, non-allergic, mild, moderate, severe, bronchitis, or exercise-induced),…” and ; “… COPD (reduction of damage, airways inflammation, bronchial hyperreactivity, remodeling or disease progression) …”. Claims are not allowed to have limitations within parentheticals since the readers does not know whether the limitation within the parentheticals are merely exemplary or a required limitation of the claim. Only abbreviations are allowed in parentheticals for example “Cryopyrin Associated Periodic Syndrome (CAPS)”. Thus, parentheticals of claim 60 renders metes and bounds of claim 60 undefined hence rendering 60 indefinite. Please remove all occurrences of limitations within parentheticals within this claim to render moot the rejection. Conclusion Claims 1, 5-6 and 56-59 are allowed. Claims 7 and 60 are rejected. Examiner did not find prior art for independent claim 1. Zheng et. al (US 11685750 B2) discloses crystal form of compound PNG media_image1.png 706 566 media_image1.png Greyscale (claim 1) where the salt is different from the instant claim where the salt is PNG media_image2.png 200 400 media_image2.png Greyscale . Artisan skilled in the art would not be able to envision an obvious modification or rationale to use different acid, therefore Zheng et.al. is a close art not a prior art. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Rehana Ismail whose telephone number is (703)756-4776. The examiner can normally be reached Monday-Friday 9:00am-5:00pm. 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, Andrew D Kosar can be reached at (571)272-913. 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. /R.I./Examiner, Art Unit 1625 /JOHN S KENYON/Primary Patent Examiner, Art Unit 1625
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Prosecution Timeline

Oct 13, 2023
Application Filed
Oct 09, 2025
Non-Final Rejection — §112 (current)

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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
79%
Grant Probability
99%
With Interview (+29.4%)
3y 4m
Median Time to Grant
Low
PTA Risk
Based on 71 resolved cases by this examiner. Grant probability derived from career allow rate.

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