Prosecution Insights
Last updated: April 19, 2026
Application No. 18/191,919

Bifidobacterium longum for Preventing and/or Treating Essential Hypertension

Non-Final OA §112
Filed
Mar 29, 2023
Examiner
ZEMAN, ROBERT A
Art Unit
1645
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Jiangnan University
OA Round
1 (Non-Final)
54%
Grant Probability
Moderate
1-2
OA Rounds
3y 9m
To Grant
82%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allow Rate
413 granted / 766 resolved
-6.1% vs TC avg
Strong +28% interview lift
Without
With
+27.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
51 currently pending
Career history
817
Total Applications
across all art units

Statute-Specific Performance

§101
4.4%
-35.6% vs TC avg
§103
21.5%
-18.5% vs TC avg
§102
16.6%
-23.4% vs TC avg
§112
40.7%
+0.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 766 resolved cases

Office Action

§112
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 Election/Restrictions Applicant’s election without traverse of Group I and prevention in the replies filed on 7-31-2025 and 11-24-2025 is acknowledged. Claims 1-12 are pending. Claims 6-12 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Claims 1-5 are currently under examination. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. However, if should applicant desire to obtain the benefit of foreign priority under 35 U.S.C. 119(a)-(d), a certified English translation of the foreign application must be submitted in reply to this action. 37 CFR 41.154(b) and 41.202(e). Failure to provide a certified translation may result in no benefit being accorded for the non-English application. Information Disclosure Statement The Information Disclosure Statement filed on 6-14-2023 has been considered. An initialed copy is attached hereto. It should be noted that the listing of references in the specification is not a proper information disclosure statement. 37 CFR 1.98(b) requires a list of all patents, publications, or other information submitted for consideration by the Office, and MPEP § 609.04(a) states, "the list may not be incorporated into the specification but must be submitted in a separate paper." Therefore, unless the references have been cited by the examiner on form PTO-892, they have not been considered. Claim Objections Claim 1 is objected to for reciting claim language drawn to a non-elected invention. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Biological Deposit Requirement Claims 1-5 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. It is apparent that Bifidobacterium longum CCFM752 deposited with the Guangdong Microbial Culture Collection Center (GDMCC) with the accession number of GDMCC No. 61157 is required in order to practice the invention. Specifically, it is noted that claim 1recites deposited material and that claims 2-5 depend from claims reciting deposited material. The deposit of biological organisms is considered by the Examiner to be necessary for the enablement of the current invention (see 37 CRF 1.808(a)). The examiner acknowledges the deposit of organisms under the GDMCC accession number GDMCC No. 61157 in partial compliance with this requirement. However, said deposits are not in full compliance with 37 CFR 1.803-1.809. If the deposit is made under terms of the Budapest Treaty, then an affidavit or declaration by Applicants or person(s) associated with the patent owner (assignee) who is in a position to make such assurances, or a statement by an attorney of record over his or her signature, stating that the deposit has been made under the terms of the Budapest Treaty and that all restrictions imposed by the depositor on the availability to the public of the deposited material will be irrevocably removed upon the granting of a patent, would satisfy the deposit requirements. See 37 CFR 1.808. If a deposit is not made under the terms of the Budapest Treaty, then an affidavit, or declaration by Applicants or person(s) associated with the patent owner (assignee) who is in a position to make such assurances, or a statement by an attorney of record over his or her signature, stating that the following criteria have been met: 1) during the pendency of the application, access to the deposit will be afforded to one determined by the Commissioner to be entitled thereto; 2) all restrictions imposed by the depositor on the availability to the public of the deposited material will be irrevocably removed upon the granting of a patent; and 3) the deposits will be maintained for a term of at least thirty (30) years from the date of the deposit or for the enforceable life of the patent or for a period of at least five (5) years after the most recent request for the furnishing of a sample of the deposited material, whichever is longest; and 4) a viability statement in accordance with the provisions of 37 CFR 1.807; and 5) the deposit will be replaced should it become necessary due to inviability, contamination or loss of capability to function in the manner described in the specification. In addition, the identifying information set forth in 37 CRF 1.809(d) should be added to the specification. See 37 CFR 1.803 – 1.809 for additional explanation of these requirements. Written Description Claims 1-5 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. The instant claims are drawn to the utilization of compositions comprising the Bifidobacterium longum CCFM752 deposited with the Guangdong Microbial Culture Collection Center (GDMCC) with the accession number of GDMCC No. 61157, a culture thereof or a fermentation product thereof wherein said compositions said compositions prevent any and all types of cardiovascular disease regardless of etiology. Moreover, the rejected claims further require that said compositions: (1) significantly decreasing the O2- level and the H2O2 level in A7R5 cells stimulated with Angiotensin II; (2) significantly inhibiting the NADPH oxidase activity in A7R5 cells stimulated with Angiotensin II; (3) significantly increasing the catalase activity in A7R5 cells; (4) significantly decreasing the blood pressure level, the aortic wall ROS level and the aortic wall NADPH oxidase activity in individuals with essential hypertension; (5) significantly increasing the aortic wall CAT activity, the aortic wall endothelial NO synthase activity and the serum CAT activity in individuals with essential hypertension; and (6) significantly decreasing the aortic wall collagen level and the aortic wall thickness index in individuals with essential hypertension (claim 2). To fulfill the written description requirements set forth under 35 USC § 112, first paragraph, the specification must describe at least a substantial number of the members of the claimed genus, or alternatively describe a representative member of the claimed genus, which shares a particularly defining feature common to at least a substantial number of the members of the claimed genus, which would enable the skilled artisan to immediately recognize and distinguish its members from others, so as to reasonably convey to the skilled artisan that Applicant has possession the claimed invention. To adequately describe the genus of therapeutics, Applicant must adequately describe for a given “cardiovascular disease to be prevented: the specific culture conditions required for the production of “the culture” or the specific fermentation product that give rise to the recited “prevention of cardiovascular diseases” as well as the dosages and means administered required to achieve said prevention. However, with the exception of the of the specific “B. longum CCFM752 culture supernatant” utilized in Examples 2-5 and the ability of B. longum CCFM752 to reduce hypertension the specification is silent with regard to any in vivo efficacious application of any composition comprising the B. longum CCFM752, a culture thereof or a fermentation product thereof to prevent any cardiovascular disease is equally silent with regard to dosages and methods of application. Moreover, Wang et al. (Microorganism Vol. 9, 452, pages 1-12) clearly demonstrates the unpredictability of the in vivo therapeutic effects of B. longum CCFM752 supernatants when they state: “...the metabolites of probiotic strains CCFM752, CCFM1149, and CCFM10 exert antioxidative effects on A7R5 through different intracellular pathways. Thus, these probiotic strains have the potential of preventing cardiovascular diseases. Further studies are needed to testify their effects on animal models and human beings, and their physiological properties, such as antibiotic resistance, virulence, as well as the dose-effect relationships, should also be examined before the industrialization of these probiotic strains” (see Conclusions section on page 10). Consequently, the specification fails to disclose distinguishing and identifying features of a representative number of members of the genus of therapeutics which the claims are drawn, such as a correlation between the components of the compositions (and the means to produce and administer them) and its recited function (i.e. treating any and all cardiovascular diseases) so that the skilled artisan could immediately envision, or recognize at least a substantial number of members of the claimed genus of therapeutics. Therefore, since the specification fails to adequately describe at least a substantial number of members of the genus of therapeutics to which the claims refer, the written description requirement is not satisfied. MPEP § 2163.02 states, “[a]n objective standard for determining compliance with the written description requirement is, 'does the description clearly allow persons of ordinary skill in the art to recognize that he or she invented what is claimed' ”. The courts have decided: The purpose of the “written description” requirement is broader than to merely explain how to “make and use”; the applicant must convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention. The invention is, for purposes of the “written description” inquiry, whatever is now claimed. See Vas-Cath, Inc. v. Mahurkar, 935 F.2d 1555, 1563-64, 19 USPQ2d 1111, 1117 (Federal Circuit, 1991). Furthermore, the written description provision of 35 USC § 112 is severable from its enablement provision; and adequate written description requires more than a mere statement that it is part of the invention and reference to a potential method for isolating it. See Fiers v. Revel, 25 USPQ2d 1601, 1606 (CAFC 1993) and Amgen Inc. V. Chugai Pharmaceutical Co. Ltd., 18 USPQ2d 1016. MPEP 2163.02 further states, “[p]ossession may be shown in a variety of ways including description of an actual reduction to practice, or by showing the invention was 'ready for patenting' such as by disclosure of drawings or structural chemical formulas that show that the invention was complete, or by describing distinguishing identifying characteristics sufficient to show that the applicant was in possession of the claimed invention” See, e.g., Pfaff v. Wells Elecs., Inc., 525 U.S. 55, 68, 119 S.Ct. 304, 312, 48 USPQ2d 1641, 1647 (1998); Regents of the Univ. of Cal. v. Eli Lilly, 119 F.3d 1559, 1568, 43 USPQ2d 1398, 1406 (Fed. Cir. 1997); Amgen, Inc. v. Chugai Pharm., 927 F.2d 1200, 1206, 18 USPQ2d 1016, 1021 (Fed. Cir. 1991) (one must define a compound by "whatever characteristics sufficiently distinguish it"). Moreover, because the claims encompass a genus of variant species, an adequate written description of the claimed invention must include sufficient description of at least a representative number of species by actual reduction to practice, reduction to drawings, or by disclosure of relevant, identifying characteristics sufficient to show that Applicant was in possession of the claimed genus. However, factual evidence of an actual reduction to practice has not been disclosed by Applicant in the specification; nor has Applicant shown the invention was “ready for patenting” by disclosure of drawings or structural chemical formulas that show that the invention was complete; nor has Applicant described distinguishing identifying characteristics sufficient to show that Applicant were in possession of the claimed invention at the time the application was filed. Moreover, the describing of a biological entity by their functions was addressed in the Centocor decision (CENTOCOR ORTHO BIOTECH, INC. v ABBOTT LABORATORIES (Fed Cir, 2010-1144, 2/23/2011)). In said case the court stated” To satisfy the written description requirement, "the applicant must 'convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention,' and demonstrate that by disclosure in the specification of the patent." Carnegie Mellon Univ. v. Hoffmann-La Roche Inc., 541 F.3d 1115, 1122 (Fed. Cir. 2008) (quoting Vas-Cath Inc. v. Mahurkar, 935 F.2d 1555, 1563-64 (Fed. Cir. 1991)). Assessing such "possession as shown in the disclosure" requires "an objective inquiry into the four corners of the specification." Ariad, 598 F.3d at 1351. Ultimately, "the specification must describe an invention understandable to [a person of ordinary skill in the art] and show that the inventor actually invented the invention claimed." Id. A "mere wish or plan" for obtaining the claimed invention is not adequate written description. Regents of the Univ. of Cal. v. Eli Lilly & Co., 119 F.3d 1559, 1566 (Fed. Cir. 1997). The court further opined that Centocor's suggestion that our decision in Noelle and the PTO written description guidelines support the view that fully disclosing the human TNF-α protein provides adequate written description for any antibody that binds to human TNF-α. That suggestion is based on an unduly broad characterization of the guidelines and our precedent. The court concluded that While our precedent suggests that written description for certain antibody claims can be satisfied by disclosing a well-characterized antigen, that reasoning applies to disclosure of newly characterized antigens where creation of the claimed antibodies is routine. Claiming antibodies with specific properties, e.g., an antibody that binds to human TNF-α with A2 specificity, can result in a claim that does not meet written description even if the human TNF-α protein is disclosed because antibodies with those properties have not been adequately described. Conclusion No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT A ZEMAN whose telephone number is (571)272-0866. The examiner can normally be reached Monday thru Friday; 6:30 am - 3pm EST. 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, Vanessa Ford can be reached at 571-272-00857. 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. /ROBERT A ZEMAN/Primary Examiner, Art Unit 1645 December 13, 2025
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Prosecution Timeline

Mar 29, 2023
Application Filed
Nov 24, 2025
Response Filed
Dec 13, 2025
Non-Final Rejection — §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
54%
Grant Probability
82%
With Interview (+27.9%)
3y 9m
Median Time to Grant
Low
PTA Risk
Based on 766 resolved cases by this examiner. Grant probability derived from career allow rate.

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