Prosecution Insights
Last updated: September 24, 2026
Application No. 18/646,814

APPLICATION OF TYPHANEOSIDE IN PREPARATION OF MEDICINE FOR URIC ACID-LOWERING AND/OR KIDNEY INJURY

Non-Final OA §101§102§112
Filed
Apr 26, 2024
Priority
Apr 27, 2023 — CN 202310465754.3
Examiner
OLSON, ANDREA STEFFEL
Art Unit
Tech Center
Assignee
Institute Of Chinese Materia Medica China Academy Of Chinese Medical Sciences
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
9m
Est. Remaining
50%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
887 granted / 1424 resolved
+2.3% vs TC avg
Minimal -12% lift
Without
With
+-11.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
52 currently pending
Career history
1475
Total Applications
across all art units

Statute-Specific Performance

§101
3.0%
-37.0% vs TC avg
§103
37.7%
-2.3% vs TC avg
§102
17.4%
-22.6% vs TC avg
§112
22.8%
-17.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1424 resolved cases

Office Action

§101 §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 application claims benefit of foreign application CN202310465754.3, filed April 27, 2023. Claims 1-10 are pending in this application and examined on the merits herein. 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 1-6 are rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. The claims do not fall within at least one of the four categories of patent eligible subject matter because an “application” as described in the base claim 1 is not clearly directed to a particular statutory category of invention such as a process or composition of matter. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claims 2 and 6 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Base claim 1 describes the compound typhaneoside, which is a specific chemical substance having a particular chemical formula. Dependent claim 2 contains as the only further limitations, an explicit recitation of the molecular formula and chemical structure of typhaneoside. Because these formulae merely recite necessary characteristics of the already defined compound typhaneoside, they therefore fail to further limit the scope of base claim 1. Claim 6 contains as its sole additional limitation the requirement that the composition be a solid, liquid, or gas. Since any pharmaceutically acceptable composition of matter must be a solid, liquid, or gas, this claim fails to further limit claim 1. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. 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)(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 1-10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yan et al. (Reference included with PTO-892) Independent claim 1 is directed to an application of the chemical compound typhaneoside in preparation of a medicine. As discussed above under 35 USC 101, it is unclear what statutory category an “application” refers to. At the very least, these claims will be considered to be infringed either by a pharmaceutical composition or else by a process of manufacturing a pharmaceutical composition. Claim 7 and its dependent claims are directed to a drug for a particular intended purpose, which is a composition of matter comprising a particular active ingredient. In both cases, the recitation of an intended use such as “uric acid lowering” or “for treating hyperuricemic kidney injury,” are seen to be intended uses of the recited medicine or drug composition, and would be infringed by any composition that is usable for the recited intended use, whether or not the reference describing said composition actually describes the same intended use for the composition. Yan et al. discloses a complex of typhaneoside in a complex with a tetrahedral framework nucleic acid, (TTNA) which has an improved bioavailability and stability. (p. 8769 right column last paragraph – p. 8771 left column first paragraph) In an animal study, this complex was administered to experimental animals as a solution in normal saline. (p. 8778 left column, “Animal Models and Treatments.”) Preparing this injectable solution is reasonably considered to be “application” of typhaneoside in preparation of a medicine as recited in present claim 1, and the injectable composition itself is reasonably considered to be a drug as recited in present claims 7 and 9. Regarding claim 2, as discussed under 35 USC 112(d) this claim does not further limit the scope of base claim 1, and is therefore also anticipated for the same reasons. Regarding claims 3, 4, and 7-10 the saline in which the typhaneoside TFNA complex is dissolved is reasonably considered to be a medically acceptable carrier or diluent. Regarding claim 6, the dosage form is a liquid. Regarding claim 5, a recitation of the intended use of the drug does not differentiate the claim from the prior art as it does not correlate with any objective structural feature of the composition. For these reasons Yan et al. anticipates the present claims. Conclusion No claims ae allowed in this action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANDREA OLSON whose telephone number is (571)272-9051. The examiner can normally be reached M-F 6am-3:00pm. 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, Scarlett Y Goon can be reached at 571-270-5241. 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. /ANDREA OLSON/ Primary Examiner, Art Unit 1693 8/17/2026
Read full office action

Prosecution Timeline

Apr 26, 2024
Application Filed
Aug 20, 2026
Non-Final Rejection mailed — §101, §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
62%
Grant Probability
50%
With Interview (-11.9%)
3y 1m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1424 resolved cases by this examiner. Grant probability derived from career allowance rate.

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