Prosecution Insights
Last updated: July 17, 2026
Application No. 17/990,489

FLAVONE DERIVATIVES AND USES IN TARGETING CK2-MEDIATED DISEASES AND CONDITIONS

Final Rejection §102
Filed
Nov 18, 2022
Priority
May 18, 2020 — provisional 63/026,647 +2 more
Examiner
CHONG, YONG SOO
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Salk Institute for Biological Studies
OA Round
2 (Final)
44%
Grant Probability
Moderate
3-4
OA Rounds
2m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 44% of resolved cases
44%
Career Allowance Rate
383 granted / 878 resolved
-16.4% vs TC avg
Strong +41% interview lift
Without
With
+41.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
59 currently pending
Career history
944
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
71.3%
+31.3% vs TC avg
§102
17.3%
-22.7% vs TC avg
§112
5.0%
-35.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 878 resolved cases

Office Action

§102
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 . Status of the Application This Office Action is in response to applicant’s arguments filed on 2/13/26. Claims 1-20 are pending. Claims 1, 4, 6 have been amended. Claims 7, 9, 11-20 have been withdrawn. Claims 1-6, 8, 10 are examined herein. The claim amendments have rendered the 102 rejection of the last Office Action moot, therefore hereby withdrawn. The search will now be expanded and another species will be selected for examination. With regard to the expanded species selected by examiner for examination, claims 2-7, 9 have been withdrawn from further consideration as being drawn to a non-elected species. Claims 1, 8, 10 are examined herein insofar as they read on the elected invention and the expanded species. 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 1-6, 8, 10 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1, 16-17 of copending Application No. 19/131,341. Although the claims at issue are not identical, they are not patentably distinct from each other because the referenced claims recite compound JKT.678A (below) and a pharmaceutically acceptable excipient. PNG media_image1.png 174 248 media_image1.png Greyscale This is a provisional obviousness-type double patenting rejection because the conflicting claims have not in fact been patented. Response to Arguments Applicant requests reconsideration in view of the claim amendments. This is not persuasive because the referenced compound (JKT.678A) still reads on the amended claims. Claim Rejections - 35 USC § 102 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) the invention was known or used by others in this country, or patented or described in a printed publication in this or a foreign country, before the invention thereof by the applicant for a patent. Claims 1, 8, 10 are rejected under 35 U.S.C. 102(a) as being anticipated by Wong et al. (US Patent 8,410,109, of record). Wong et al. teach polyphenol-like compounds that are useful for regulating markers of inflammatory conditions (abstract). Example 11 shows the synthesis of the preferred compound, 2-(5-hydroxy-pyridin-2-yl)chromen-4-one, which included an aqueous workup (Example 11 on col. 42). The limitations in claim 8 are considered physical properties of the compounds of formula I, therefore inherent to the compounds and necessarily present. PNG media_image2.png 264 302 media_image2.png Greyscale 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 CFR 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 extension fee pursuant to 37 CFR 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 date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Yong S. Chong whose telephone number is (571)-272-8513. The examiner can normally be reached Monday to Friday: 9 AM to 5 PM EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Adam Milligan, can be reached at (571)-270-7674. The fax phone number for the organization where this application or proceeding is assigned is (571)-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at (866)-217-9197 (toll-free). /Yong S. Chong/Primary Examiner, Art Unit 1623
Read full office action

Prosecution Timeline

Nov 18, 2022
Application Filed
Mar 18, 2025
Response after Non-Final Action
Oct 15, 2025
Non-Final Rejection mailed — §102
Feb 13, 2026
Response Filed
May 14, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

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4y 5m to grant Granted Jun 30, 2026
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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
44%
Grant Probability
85%
With Interview (+41.4%)
3y 11m (~2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 878 resolved cases by this examiner. Grant probability derived from career allowance rate.

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