Prosecution Insights
Last updated: September 17, 2026
Application No. 18/725,229

MULTI-SUBSTITUTED URACIL DERIVATIVE AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

Non-Final OA §101§112
Filed
Jun 28, 2024
Priority
Dec 29, 2021 — CN 202111641890.0 +1 more
Examiner
ANDERSON, REBECCA L
Art Unit
Tech Center
Assignee
Hangzhou Adamerck Pharmlabs Inc.
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
763 granted / 1040 resolved
+13.4% vs TC avg
Strong +24% interview lift
Without
With
+23.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
47 currently pending
Career history
1092
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
18.7%
-21.3% vs TC avg
§102
24.1%
-15.9% vs TC avg
§112
33.0%
-7.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1040 resolved cases

Office Action

§101 §112
DETAILED ACTION Claims 1-10 are currently pending in the instant application. Claims 1-5 and 7-10 are rejected. Claim 6 is objected. 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 Applicant’s election of Group I and the species: PNG media_image1.png 102 282 media_image1.png Greyscale in the reply filed on 23 July 2026 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). According to MPEP 803.02, the examiner has determined whether the elected species is allowable. Applicants’ elected species appears allowable. Therefore, the search and examination has been extended to the entirety of claims 1-6 and 8 which are allowable over the prior art. Claims 1-6 and 8, while having 35 USC 112(b) issues as discussed below, are directed to a product allowable over the prior art. Pursuant to the procedures set forth in MPEP § 821.04(B), claims 7 and 9-10 directed to the process of making or using an allowable product, previously withdrawn from consideration as a result of a restriction requirement, are hereby rejoined and fully examined for patentability under 37 CFR 1.104. Because all claims previously withdrawn from consideration under 37 CFR 1.142 have been rejoined, the restriction requirement as set forth in the Office action mailed on 11 June 2026 is hereby withdrawn. In view of the withdrawal of the restriction requirement as to the rejoined inventions, applicant(s) are advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application. Once the restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Claim Objections Claim 6 is 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 § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 9 and 10 are rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. Claims 9 and 10 are improper “use” claims. The claim(s) does/do not fall within at least one of the four categories of patent eligible subject matter because the “use” claims are not within one of the 4 categories of invention. According to MPEP 2173.05(q); “Use” claims that do not purport to claim a process, machine, manufacture, or composition of matter fail to comply with 35 U.S.C. 101. In re Moreton, 288 F.2d 708, 709, 129 USPQ 227, 228 (CCPA 1961)(“one cannot claim a new use per se, because it is not among the categories of patentable inventions specified in 35 U.S.C. § 101”). In Ex parteDunki, 153 USPQ 678 (Bd. App. 1967), the Board held the following claim to be an improper definition of a process: “The use of a high carbon austenitic iron alloy having a proportion of free carbon as a vehicle brake part subject to stress by sliding friction.” In Clinical Products Ltd. v. Brenner, 255 F. Supp. 131, 149 USPQ 475 (D.D.C. 1966), the district court held the following claim was definite, but that it was not a proper process claim under 35 U.S.C. 101: “The use of a sustained release therapeutic agent in the body of ephedrine absorbed upon polystyrene sulfonic acid.” 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 9 and 10 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. Specifically, claims 9 and 10 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being incomplete for omitting essential steps, such omission amounting to a gap between the steps. See MPEP § 2172.01. The omitted steps are: how to use the compound in the preparation of a medication. Specifically, because attempts to claim a process without setting forth any steps involved in the process generally raises an issue of indefiniteness under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. For example, a claim which read: “[a] process for using monoclonal antibodies of claim 4 to isolate and purify human fibroblast interferon” was held to be indefinite because it merely recites a use without any active, positive steps delimiting how this use is actually practiced. Ex parteErlich, 3 USPQ2d 1011 (Bd. Pat. App. & Inter. 1986). Although a claim should be interpreted in light of the specification disclosure, it is generally considered improper to read limitations contained in the specification into the claims. See In rePrater, 415 F.2d 1393, 162 USPQ 541 (CCPA 1969) and In re Winkhaus, 527 F.2d 637, 188 USPQ 129 (CCPA 1975), which discuss the premise that one cannot rely on the specification to impart limitations to the claim that are not recited in the claim. It is appropriate to reject a claim that recites a use but fails to recite steps under 35 U.S.C. 101 and 35 U.S.C. 112(b) Claims 1 and 2 and their dependent claims 4, 5, 7, and 8 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. Specifically, claims 1 and 2 have multiple instances of an alkylene within brackets such as in R1, R2, R6 and in the definition of “substituted”: In claim 1: PNG media_image2.png 244 654 media_image2.png Greyscale PNG media_image3.png 56 666 media_image3.png Greyscale PNG media_image4.png 140 664 media_image4.png Greyscale In claim 2: PNG media_image5.png 116 678 media_image5.png Greyscale PNG media_image6.png 52 682 media_image6.png Greyscale . Claim 1 additionally states “optionally, the alkylene within the bracket is substituted with 1, 2, or 3 OH.” Claims 1 and 2 are therefore indefinite as it is unclear which ‘alkylene within the bracket” is optionally substituted with 1, 2, or 3 OH as the optional statement is written singularly and there are multiple alkylene groups in brackets in the claims. Claim 3 is 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 3 defines R1 and R2 to include -CH2-(1 to 6 R’-substituted or unsubstituted phenyl). The phenyl in -CH2-(1 to 6 R’-substituted or unsubstituted phenyl) cannot have 6 R’ substituents as the phenyl is attached to the -CH2- group and therefore only has 5 available locations for substitution: PNG media_image7.png 200 400 media_image7.png Greyscale . Claim 10 is 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. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 10 recites the broad recitation ischemic stroke and the claim also recites cerebral infarction in parenthesis after ishemic stroke which is the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to REBECCA L ANDERSON whose telephone number is (571)272-0696. The examiner can normally be reached Monday-Friday from 6am-2pm. 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 Kosar can be reached at 571-272-0913. 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. /REBECCA L ANDERSON/Primary Examiner, Art Unit 1626 ____________________ 20 August 2026 Rebecca Anderson Primary Examiner Art Unit 1626, Group 1620 Technology Center 1600
Read full office action

Prosecution Timeline

Jun 28, 2024
Application Filed
Aug 25, 2026
Non-Final Rejection mailed — §101, §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
73%
Grant Probability
97%
With Interview (+23.6%)
2y 4m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1040 resolved cases by this examiner. Grant probability derived from career allowance rate.

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