Office Action Predictor
Last updated: April 17, 2026
Application No. 17/429,049

HISTONE ACETYLTRANSFERASE MODULATORS AND COMPOSITIONS AND USES THEREOF

Non-Final OA §DP
Filed
Aug 06, 2021
Examiner
CHICKS, ASHLI ARIANA
Art Unit
1626
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Appia Pharmaceuticals LLC
OA Round
3 (Non-Final)
65%
Grant Probability
Favorable
3-4
OA Rounds
3y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allow Rate
49 granted / 75 resolved
+5.3% vs TC avg
Strong +44% interview lift
Without
With
+43.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
37 currently pending
Career history
112
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
30.0%
-10.0% vs TC avg
§102
20.4%
-19.6% vs TC avg
§112
23.5%
-16.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 75 resolved cases

Office Action

§DP
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 . Claim Status Claims 9-11, 26, 28 and 31-32 are pending. Claims 9-11 and 31 are rejected. Claims 26 and 32 are objected to. Claim 28 is allowed. 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 final rejection. 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 08/26/2025 has been entered. Response to Amendment/Arguments Applicant’s amendments have overcome the previously presented rejections. A call was made to John Kane on September 16th, 2025, to propose filing a Terminal Disclaimer to advance prosecution but the Examiner was unable to reach Applicant’s representative. 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 9-11 and 31 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-26 of copending Application No. 17429048 in view of Sheridan, R.P. J. Chem. Inf. Comput. Sci. 2002, 42, 103-108. The copending application discloses the following compound in claim 6 which is analogous to RA013917 of instant claim 9: PNG media_image1.png 234 216 media_image1.png Greyscale . The copending compound is analogous to a compound of formula (I) in instant claim 31 where Y is PNG media_image2.png 92 120 media_image2.png Greyscale and Ra1 is H; however, the copending compound differs by having a pyrimidine ring where the instant claim requires pyridine. Copending claim 1 teaches the following ring where Y1 and Y2 are defined as CH or N and requires that one or both of Y1 and Y2 are N. Regarding the structural change needed to arrive at the instantly claimed structure Sheridan reports a study that analyzes compounds with similar biological properties as follows (abstract): We have written a method that extracts one-to-one replacements of chemical groups in pairs of drug-like molecules with the same biological activity and counts the frequency of the replacements in a large collection of such molecules. […] Regarding one method of analysis, the replacement of –CH= with –N= in an aromatic ring was returned as the most frequent replacement to result in compounds with similar activity (Figure 5, page 106) and Sheridan et al. state that this “classical” replacement in medicinal chemistry can occur in pyridine <-> pyrimidine (page 105): PNG media_image3.png 161 314 media_image3.png Greyscale . Accordingly, a person having ordinary skill in the art would have been familiar with the common replacement of –N= with -CH= or replacement of pyrimidine with pyridine and would have reasonably expected that such a replacement in the copending compounds would result in an additional useful Hat activator compound. Regarding instant claims 10-11, copending claims 7-8 and 11 teach that the copending compounds are HAT activators and disclose a pharmaceutical composition comprising the compound. In the interest of optimizing particular compounds in the utilities of the copending application, a person having ordinary skill in the art would have been motivated to prepare closely related compounds that differ by replacement of -N= with -CH= with a reasonable expectation that they would have similar properties, wherein said compound would read on instant claims 9-11 and 31. This is a provisional nonstatutory double patenting rejection. Allowable Subject Matter Claim 28 is allowed. Claim 26 and 32 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 Any inquiry concerning this communication or earlier communications from the examiner should be directed to ASHLI A CHICKS whose telephone number is (571)270-0582. The examiner can normally be reached M-Th 7 a.m.- 5 p.m.. 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, Joseph K McKane can be reached at 571-272-0699. 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. /A.A.C./Examiner, Art Unit 1626 /JOSEPH K MCKANE/Supervisory Patent Examiner, Art Unit 1626
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Prosecution Timeline

Aug 06, 2021
Application Filed
Sep 26, 2024
Non-Final Rejection — §DP
Dec 26, 2024
Response Filed
Feb 20, 2025
Final Rejection — §DP
Aug 26, 2025
Request for Continued Examination
Aug 28, 2025
Response after Non-Final Action
Sep 28, 2025
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12589107
COMPOSITION CONTAINING NICOTINAMIDE MONONUCLEOTIDE AND MOGROSIDE, AND APPLICATION THEREOF
2y 5m to grant Granted Mar 31, 2026
Patent 12590088
JAK INHIBITOR COMPOUND AND PHARMACEUTICAL COMPOSITION INCLUDING THE SAME
2y 5m to grant Granted Mar 31, 2026
Patent 12564552
ORAL PRODUCT WITH A BASIC AMINE AND AN ION PAIRING AGENT
2y 5m to grant Granted Mar 03, 2026
Patent 12552801
NEW INDAZOLE DERIVATIVES
2y 5m to grant Granted Feb 17, 2026
Patent 12540130
SUBSTITUTED PYRROLIDINE AMIDES IV
2y 5m to grant Granted Feb 03, 2026
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
65%
Grant Probability
99%
With Interview (+43.9%)
3y 3m
Median Time to Grant
High
PTA Risk
Based on 75 resolved cases by this examiner. Grant probability derived from career allow rate.

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