Prosecution Insights
Last updated: September 21, 2026
Application No. 18/562,419

ARGININE METHYLTRANSFERASE INHIBITOR AND USE THEREOF

Non-Final OA §101§102§103§112
Filed
Nov 20, 2023
Priority
May 21, 2021 — CN 2202110560615.X +2 more
Examiner
VALENROD, YEVGENY
Art Unit
1628
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Cytosinlab Therapeutics Co. Ltd.
OA Round
2 (Non-Final)
73%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
744 granted / 1025 resolved
+12.6% vs TC avg
Strong +25% interview lift
Without
With
+25.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
46 currently pending
Career history
1058
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
38.0%
-2.0% vs TC avg
§102
18.1%
-21.9% vs TC avg
§112
21.0%
-19.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1025 resolved cases

Office Action

§101 §102 §103 §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 Newly submitted claims 18, 19, 21 and 22 directed to an invention that is independent or distinct from the invention originally claimed for the following reasons: The examined claims are directed to a compound and a pharmaceutical composition comprising the compound. The newly added claims are directed to a method of treating and preventing disease. The number of diseases that applicant claims to treat and prevent is very large and encompasses genus listings such as “neurodegenerative disease” and “cardiovascular disease” each of which contains multiple distinct species of disease. To examine the newly submitted claims at this point of examination presents a search burden. Furthermore, the diseases are known to be treated with pharmaceutical agents other than the claimed compound, for example hydroxyquinoline for malaria or cisplatin for tumor. Since applicant has received an action on the merits for the originally presented invention, this invention has been constructively elected by original presentation for prosecution on the merits. Accordingly, claims 18, 19, 21 and 22 are withdrawn from consideration as being directed to a non-elected invention. See 37 CFR 1.142(b) and MPEP § 821.03. To preserve a right to petition, the reply to this action must distinctly and specifically point out supposed errors in the restriction requirement. Otherwise, the election shall be treated as a final election without traverse. Traversal must be timely. Failure to timely traverse the requirement will result in the loss of right to petition under 37 CFR 1.144. If claims are subsequently added, applicant must indicate which of the subsequently added claims are readable upon the elected invention. Should applicant traverse on the ground that the inventions are not patentably distinct, applicant should submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. In either instance, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103 or pre-AIA 35 U.S.C. 103(a) of the other invention. Withdrawn rejections and objections Objection to claims 1-15 for containing numerous grammatical errors is withdrawn in view of amendments filed on 4/21/26. Rejection of claim 15 under 35 USC 101 and 35 USC 112(d) as being indefinite and as not being one of the four categories of patent eligible subject matter are withdrawn in view of amendments filed on 4/21/26 Rejections of claims 1-15 under 35 USC 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter is withdrawn in view of amendments filed on 4/21/26. Rejection of claims 1-4, 6-8, 10, 14 and 15 under 35 USC 102(a)(1) over Tran et al is withdrawn in view of amendments filed on 4/21/26 Rejection of claims and 9 under 35 USC 103 over Tran et al is withdrawn in view of amendments filed on 4/21/26 New rejections 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 1-5, 10, 12, 16 and 17 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. Claim 1 defines R2 as selected from H and C1-C6 alkyl. Claim 1 also states that substituents on R2 are selected from… It is unclear if moiety R2 is substituted or not substituted. Allowed subject matter Claims 13 and 20 are allowed. Conclusion Claims 1-5, 10, 12, 13, 16-22 are pending Claims 18, 19, 21 and 22 are withdrawn Claims 13 and 20 are allowed Claims 1-5, 10, 12, 16 and 17 are rejected THIS ACTION IS MADE FINAL. 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 nonprovisional extension fee (37 CFR 1.17(a)) 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 mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to YEVGENY VALENROD whose telephone number is (571)272-9049. The examiner can normally be reached Mon-Fri 9am-5pm. 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, Amy L Clark can be reached at 571-272-1310. 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. /YEVGENY VALENROD/Primary Examiner, Art Unit 1628
Read full office action

Prosecution Timeline

Nov 20, 2023
Application Filed
Jan 21, 2026
Non-Final Rejection mailed — §101, §102, §103
Apr 21, 2026
Response Filed
Jul 17, 2026
Final Rejection mailed — §101, §102, §103
Aug 25, 2026
Response after Non-Final Action

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

2-3
Expected OA Rounds
73%
Grant Probability
98%
With Interview (+25.1%)
2y 6m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1025 resolved cases by this examiner. Grant probability derived from career allowance rate.

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