Prosecution Insights
Last updated: May 04, 2026
Application No. 17/906,786

COMPOUNDS AS CASEIN KINASE INHIBITORS

Non-Final OA §102
Filed
Sep 20, 2022
Priority
Mar 27, 2020 — CN PCT/CN2020/081804 +1 more
Examiner
VISHNYAKOVA, ELENA VLADIMIROVNA
Art Unit
1691
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Gritscience Biopharmaceuticals Co. Ltd.
OA Round
3 (Non-Final)
59%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
13 granted / 22 resolved
-0.9% vs TC avg
Strong +75% interview lift
Without
With
+75.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
33 currently pending
Career history
55
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
42.3%
+2.3% vs TC avg
§102
16.9%
-23.1% vs TC avg
§112
17.6%
-22.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 22 resolved cases

Office Action

§102
DETAILED ACTION This office action is in response to applicant’s filing dated March 11, 2026. 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after allowance or after an Office action under Ex Parte Quayle, 25 USPQ 74, 453 O.G. 213 (Comm'r Pat. 1935). Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, prosecution in this application has been reopened pursuant to 37 CFR 1.114. Applicant's submission filed on March 11, 2026 has been entered. Status of claims Claims 17, 64 - 72 and 75 - 78 are pending in the instant application. Acknowledgment is made of Applicant’s amendments filed March 11, 2026. Acknowledgment is made of Applicant’s cancelation of claims 1 – 16, 18 – 63 and 73 -74 and addition of a new claims 75 - 78. Claims 65 – 72 are withdrawn from consideration as being drawn to an unelected invention. Claims 17, 64 and 75 – 78 are presently under examination. as being related to elected Group I invention. Claim Objections Claims 77 and 78 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. Claim Rejections - 35 USC § 102 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. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 17, 64, 75 and 76 are rejected under 35 U.S.C. 102(a)(1) and 102(a)(2) as being anticipated by Brienlinger et al (WO 2007/028051 A2, cited in IDS, filed 04/11/2007, hereinafter Brienlinger). Instant claims are drawn to a compound of formula PNG media_image1.png 147 129 media_image1.png Greyscale or PNG media_image2.png 149 141 media_image2.png Greyscale and a pharmaceutical composition thereof further comprising pharmaceutically acceptable carrier. Brienlinger teaches compound of formula PNG media_image3.png 109 170 media_image3.png Greyscale (page 119, Ex.#B.1) or PNG media_image4.png 107 135 media_image4.png Greyscale (page 120, Ex.#D.1). Brienlinger further teaches pharmaceutical compositions where said compounds are mixed with biologically suitable carriers or excipient(s) (page 29, lines 23 – 24). Thus, teachings of Brienlinger anticipate compounds and pharmaceutical composition of claims 17, 64, 75 and 76. Response to Arguments Applicant argues: - Bisaha does not describe with sufficient specificity the compounds recited in claim 17, thus, - compounds of Bisaha do not anticipate instantly claimed compounds; - nor is there a basis to modify Bisaha such that the specific compounds in claim 17 would be the reasonable result. - Moreover, the four compounds recited in independent claim 17 exhibit significant inhibitory activity against CK1δ and demonstrate superior potency compared to other compounds disclosed in the application. Examiner’s response: Applicant's arguments have been fully considered but not found persuasive because: although reference of Bisaha is not a relevant prior art in view of amended claims, however, Brienlinger teaches compounds of identical structures as compounds of instant claims (see the rejection section above). Thus, since Brienlinger teaches compounds of the same structure as instantly claimed, all necessary properties are inherently present, because compounds of identical or similar composition cannot exert mutually exclusive properties (see also MPEP 2112.01). Conclusion Claims 17, 64, 75 and 76 are rejected. Claims 77 and 78 are objected to. No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ELENA V VISHNYAKOVA whose telephone number is (571)272-3781. The examiner can normally be reached 7:30am - 5pm ET. 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, RENEE CLAYTOR can be reached at (571)272-8394. 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. /E.V.V./Examiner, Art Unit 1691 /SAVITHA M RAO/Primary Examiner, Art Unit 1691
Read full office action

Prosecution Timeline

Show 1 earlier event
May 01, 2025
Non-Final Rejection — §102
Sep 05, 2025
Response Filed
Oct 23, 2025
Final Rejection — §102
Jan 20, 2026
Response after Non-Final Action
Mar 02, 2026
Request for Continued Examination
Mar 09, 2026
Response after Non-Final Action
Mar 11, 2026
Response Filed
Apr 16, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
59%
Grant Probability
99%
With Interview (+75.0%)
2y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 22 resolved cases by this examiner. Grant probability derived from career allowance rate.

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