Prosecution Insights
Last updated: July 17, 2026
Application No. 18/700,745

Method of Treating Heart Failure and Traditional Chinese Medicine Composition for Treating Heart Failure

Non-Final OA §101§112
Filed
Apr 12, 2024
Priority
Mar 27, 2024 — nonprovisional of PCTCN2024083958
Examiner
HOFFMAN, SUSAN COE
Art Unit
1655
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Guangzhou Xitao Biosciences Co. Ltd.
OA Round
1 (Non-Final)
54%
Grant Probability
Moderate
1-2
OA Rounds
8m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allowance Rate
581 granted / 1073 resolved
-5.9% vs TC avg
Strong +26% interview lift
Without
With
+25.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
67 currently pending
Career history
1148
Total Applications
across all art units

Statute-Specific Performance

§101
3.1%
-36.9% vs TC avg
§103
67.4%
+27.4% vs TC avg
§102
8.7%
-31.3% vs TC avg
§112
7.5%
-32.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1073 resolved cases

Office Action

§101 §112
DETAILED ACTION 1. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 2. Claims 1-6 are currently pending. Election/Restrictions 3. Applicant's election with traverse of Group I, claims 1-4 in the reply filed on March 30, 2026 is acknowledged. In view of applicant’s arguments and the prior art, the restriction requirement is withdrawn. 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. 4. Claims 1-6 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. Claims 1-6 are indefinite because it is unclear what characteristics the composition must have in order to be considered a “traditional Chinese medicine.” The specification does not provide a clear, limiting definition for this phrase. Thus, the metes and bounds of the claims are unclear. 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. 5. Claims 5 and 6 are rejected under 35 U.S.C. 101 because the claimed invention is directed to natural products without significantly more. MPEP § 2106 sets forth the Subject Matter Eligibility Test to determine if a claim is directed to patent eligible subject matter. Step 1 asks if a claim is directed to a statutory category of invention. Applicant’s claims are directed to a product; thus, the answer to Step 1 is Yes. The analysis then moves to Step 2A, Prong One, which asks if a claim recites to a product of nature. In this case, applicant’s claims recite a combination of Semen Myristicae, Radix Vladimiriae, Fructus Chebulae, Stigma Croci, Bovis Calculus, and bear bile powder. Semen Myristicae, Radix Vladimiriae, Fructus Chebulae, Stigma Croci, Bovis Calculus, and bear bile powder are all naturally occurring products. Thus, the claims do recite products of nature. MPEP § 2106.04(b) states that “When a claim recites a nature-based product limitation, examiners should use the markedly different characteristics analysis discussed in MPEP § 2106.04(c) to evaluate the nature-based product limitation and determine the answer to Step 2A.” MPEP § 2106.04(c)(I) states that “if the nature-based product limitation is not naturally occurring, for example due to some human intervention, then the markedly different characteristics analysis must be performed to determine whether the claimed product limitation is a product of nature exception…”. To perform the markedly different characteristic analysis, MPEP § 2106.04(c)(II) states “The markedly different characteristics analysis compares the nature-based product limitation to its naturally occurring counterpart in its natural state. Markedly different characteristics can be expressed as the product’s structure, function, and/or other properties…”. In this case, there is no indication that mixing the specified natural products together as commensurate in scope with the stated claims changes the structure, function, or other properties of the natural products in any marked way in comparison with the closest naturally occurring counterpart. The closest naturally occurring counterpart for each product is the product itself because each is naturally occurring. Each product appears to maintain its naturally occurring structure and properties and is merely present in the combination. In addition, there is nothing to show that mixing the products in the particular concentrations produces any sort of marked distinction. Thus, the claimed mixture as a whole does not display markedly different characteristics in comparison with the naturally occurring counterparts. Therefore, the answer to Step 2A, Prong One, is Yes. Thus, the analysis must move to Step 2A, Prong Two, which asks if the claim recites additional elements that integrate the judicial exception into a practical application. As discussed in MPEP § 2106.04(d)(2) this evaluation is performed by identifying whether there are additional elements recited in the claim beyond the judicial exception and evaluating these additional elements to determine whether the claim as a whole integrates the exception into a practical application. In this case, applicant’s claims are directed to a composition with an intended use of treating heart failure. MPEP § 2106.04(d)(2) specifically states that a claim is only directed to “an intended use of a claimed invention or a field of use limitation, then it cannot integrate a judicial exception under the ‘treatment or prophylaxis’ consideration.” Therefore, applicant’s intended use is not sufficient to integrate the judicial exception into a practical application. Thus, the answer to Step 2A, Prong Two, is No. Thus, the analysis must move to Step 2B which asks if claims recite additional elements that amount to significantly more than the judicial exception. MPEP § 2106.05 states that this evaluation is performed by “Evaluating additional elements to determine whether they amount to an inventive concept requires considering them both individually and in combination to ensure that they amount to significantly more than the judicial exception itself.” In this case, the additional element in the claims is the combination of the products. However, MPEP § 2106.05(d) states that well-understood, routine, and conventional activities are not sufficient to show that the claims amount to significantly more than the judicial exception. Mixing specific ingredients together does not amount to significantly more than a combination of judicial exception because mixing compounds is well-understood, routine, and conventional in the field. Thus, mixing the ingredients together does not amount to significantly more than a combination of judicial exception because mixing compounds is well-understood, routine, and conventional in the field. In addition, applicant’s intended use of treating heart failure is not considered to amount to significantly more. As discussed in MPEP § 2106.05(I)(A), “Generally linking the use of the judicial exception to a particular technological environment or field of use” is not considered to be enough to qualify as significantly more. An intended use of a claimed composition only generally links the exception to the field of use. Therefore, the additional elements are not considered to amount to significantly more. Thus, the answer to Step 2B is No. Consequently, the claims are not directed to patent eligible subject matter. Allowable Subject Matter 6. Claims 1-4 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The closest prior art was cited in the previous Office action (page 3). Applicant’s arguments from March 30, 2026 regarding these references was persuasive. In addition, the references and the related prior art are not considered to anticipate or provide sufficient motivation for using the claimed ingredients in the claimed amounts to treat heart failure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Susan Hoffman whose telephone number is (571)272-0963. The examiner can normally be reached M-Th 8:30am - 5:00pm. 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, Anand Desai can be reached at 571-272-0947. 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. /SUSAN HOFFMAN/ Primary Examiner, Art Unit 1655
Read full office action

Prosecution Timeline

Apr 12, 2024
Application Filed
Jun 04, 2026
Non-Final Rejection mailed — §101, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12678460
Methods for Managing Adverse Events in Patients with Inflammation
3y 5m to grant Granted Jul 14, 2026
Patent 12667599
Pharmaceutical Composition or Health Functional Food for Prevention and Treatment of Obesity Containing Powder of Novel Hybrid Mushroom as Active Ingredient
3y 6m to grant Granted Jun 30, 2026
Patent 12661379
COMPOSITION COMPRISING CRICKET OR EXTRACT THEREOF FOR IMPROVING BOWEL MOVEMENT FUNCTION
3y 8m to grant Granted Jun 23, 2026
Patent 12637490
Method for the extraction of phycobiliproteins at high purity degree from cyanobacterial and/or algal biomasses
2y 11m to grant Granted May 26, 2026
Patent 12636338
CHINESE HERBAL MEDICINE ANTI-VIRUS ARECA NUT PRODUCT AND PREPARATION METHOD THEREOF, AND ARECA NUT ADDITIVE AGENT
2y 9m to grant Granted May 26, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
54%
Grant Probability
80%
With Interview (+25.7%)
2y 11m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1073 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month