Prosecution Insights
Last updated: April 19, 2026
Application No. 18/014,932

PENTACYCLIC TRITERPENOID GLYCOSIDE COMPOUND, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Non-Final OA §102§112
Filed
Jan 06, 2023
Examiner
ROZOF, TIMOTHY R
Art Unit
1625
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Shanghai Institute Of Materia Medica Chinese Academy Of Sciences
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
2y 2m
To Grant
97%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
690 granted / 951 resolved
+12.6% vs TC avg
Strong +24% interview lift
Without
With
+24.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 2m
Avg Prosecution
32 currently pending
Career history
983
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
20.1%
-19.9% vs TC avg
§102
34.4%
-5.6% vs TC avg
§112
23.5%
-16.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 951 resolved cases

Office Action

§102 §112
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 . DETAILED ACTION This is a response to Applicant’s communication filed on November 10, 2025. Application No. 18/014,932, is a 371 of PCT/CN2021/104599, filed July 5, 2021, and claims foreign priority to Chinese application No. CHINA 202010647960.2, filed July 7, 2020. In an amendment filed November 10, 2025, Applicant cancelled claims 2, 3, 8, and 10, and added new claims 11-13. Claims 1, 4-7, 9, and 11-13 are pending. Election/Restrictions Applicant’s elections without traverse of the invention of Group I and the compound species A104 in the reply filed on November 10, 2025, are acknowledged. Claims 5 is withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species. Claims 11-13 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention. The elections were made without traverse in the reply filed on November 10, 2025. Please note that the elected species is allowable. The search has been expanded accordingly. Claims 1, 4, 6, 7, and 9 are examined below. Claim Rejections - 35 USC § 102(a)(1) 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. Claims 1, 4, and 9 are rejected under 35 U.S.C. 102(a)(1) as being clearly anticipated by Sun et al., CN102339254 (citing the CAS Abstract). The CAS Abstract for Sun discloses the following compounds as well as pharmaceutical compositions for treating diabetes and viral diseases: PNG media_image1.png 324 585 media_image1.png Greyscale PNG media_image2.png 239 459 media_image2.png Greyscale PNG media_image3.png 324 476 media_image3.png Greyscale PNG media_image4.png 324 618 media_image4.png Greyscale PNG media_image5.png 324 498 media_image5.png Greyscale PNG media_image6.png 271 634 media_image6.png Greyscale PNG media_image7.png 249 526 media_image7.png Greyscale PNG media_image8.png 271 569 media_image8.png Greyscale PNG media_image9.png 249 460 media_image9.png Greyscale PNG media_image10.png 324 585 media_image10.png Greyscale PNG media_image11.png 324 476 media_image11.png Greyscale PNG media_image12.png 324 618 media_image12.png Greyscale PNG media_image13.png 324 498 media_image13.png Greyscale PNG media_image14.png 271 634 media_image14.png Greyscale PNG media_image15.png 249 526 media_image15.png Greyscale PNG media_image16.png 293 690 media_image16.png Greyscale PNG media_image17.png 325 498 media_image17.png Greyscale PNG media_image18.png 325 585 media_image18.png Greyscale PNG media_image19.png 325 476 media_image19.png Greyscale PNG media_image20.png 325 618 media_image20.png Greyscale PNG media_image21.png 325 509 media_image21.png Greyscale PNG media_image22.png 270 634 media_image22.png Greyscale PNG media_image23.png 249 524 media_image23.png Greyscale PNG media_image24.png 261 569 media_image24.png Greyscale PNG media_image25.png 325 585 media_image25.png Greyscale PNG media_image26.png 325 476 media_image26.png Greyscale PNG media_image27.png 325 618 media_image27.png Greyscale PNG media_image28.png 325 509 media_image28.png Greyscale PNG media_image29.png 270 634 media_image29.png Greyscale PNG media_image30.png 249 524 media_image30.png Greyscale (Sun et al., CN ‘254, citing the CAS Abstract for the compounds depicted above.) These compounds read on compounds of Formula IV of the present invention wherein Formula IV, R1, R2, and R3 are hydrogen or methyl; R4 is hydrogen; R5 is -COO-R7, where R7 is hydrogen or aryl substituted alkyl (i.e. benzyl); and Z is CH-X-R6, where X is -NHC(O)-R8, R8 is substituted or unsubstituted alkyl, or an unsubstituted aryl (i.e., phenyl). Claim Rejections - 35 USC § 112(b) 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. Claim 6 is rejected under 35 U.S.C. 112(b) as failing to set forth the subject matter which the inventor or a joint inventor regards as the invention. Claim 6 recites the limitation "C5-C9 furanosyl". There is insufficient antecedent basis for this limitation in the claim. Conclusion Claims 1, 4, 6, and 9 are not allowed. Claim 7 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. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to TIMOTHY R ROZOF whose telephone number is (571)270-5992. The examiner can normally be reached on Monday - Friday, 9:00 a.m. -5:00 p.m.. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Andrew Kosar can be reached on (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 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). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /TIMOTHY R ROZOF/ Primary Examiner, Art Unit 1625
Read full office action

Prosecution Timeline

Jan 06, 2023
Application Filed
Jan 24, 2026
Non-Final Rejection — §102, §112 (current)

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

1-2
Expected OA Rounds
73%
Grant Probability
97%
With Interview (+24.0%)
2y 2m
Median Time to Grant
Low
PTA Risk
Based on 951 resolved cases by this examiner. Grant probability derived from career allow rate.

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