Prosecution Insights
Last updated: April 19, 2026
Application No. 18/685,863

AGENT FOR PREVENTION AND/OR TREATMENT OF PORPHYROMONAS GINGIVALIS INFECTION

Non-Final OA §103§112
Filed
Feb 22, 2024
Examiner
MOREAU, NASHARA LOUISE
Art Unit
1655
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Nutri Co. Ltd.
OA Round
1 (Non-Final)
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant

Examiner Intelligence

Grants only 0% of cases
0%
Career Allow Rate
0 granted / 0 resolved
-60.0% vs TC avg
Minimal +0% lift
Without
With
+0.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
24 currently pending
Career history
24
Total Applications
across all art units

Statute-Specific Performance

§101
12.5%
-27.5% vs TC avg
§103
43.8%
+3.8% vs TC avg
§102
15.6%
-24.4% vs TC avg
§112
27.1%
-12.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 0 resolved cases

Office Action

§103 §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 . 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. 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. Claim 10 is indefinite because it is unclear what diseases are considered to “attributable” to Porphyromonoas gingivalis. Page 9 of the specification lists examples of “attributable” disease; however, states that these are not limiting examples. Thus, the metes and bounds of the claim are unclear. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 7, 10, 13, and 16 are rejected under 35 U.S.C. 103 as being unpatentable over Kawada (JP 2003171292 A– English translation provided) in view of Kim (KR 20190041864 A – English translation provided), and Chen et al (Mucosal Immunology, (Year: 2017), vol. 10, pp. 215-227). Kawada teaches periodontal disease-causing bacteria to be exterminated [to] include, for example, Porphyromonas gingivalis (PG bacterium) (page 4), Kawada also teaches the preventive or therapeutic agent for periodontal disease of the present invention is characterized by containing bacteria belonging to Bifidobacteria, lactic acid bacteria or butyric acid bacteria, and the bacteria can be Streptococcus (Enterococcus) faecalis (pages 3-4), Kawada also teaches periodontal disease-causing bacteria, [such as gingipains] (page 3). Kawada does not teach the methods for the prevention and/or treatment of Porphyromonas gingivalis infection, disease attributable to Porphyromonas gingivalis, for inhibition of the growth of Porphyromonas gingivalis, and for inhibition of gingipain activity, all using a heat-killed E. faecalis. Kim teaches a composition for preventing or treating periodontitis ([a disease that is mentioned in page 9 in the specification of the claimed invention]) using heat-treated Enterococcus faecalis (page 4). Chen et al teaches that heat-killed E. faecalis is a widely used probiotic (abstract), Chen et al also teaches that heat-killed probiotics are safer than live probiotics for purposes such as eliminating antibiotic-resistant genes, preventing production of recombinant strains, controlling the microbial load during probiotic supplementation, and application in children and immunosuppressed patients (page 215). The method as taught by Kawada can be modified to include the knowledge that P. gingivalis secretes gingipains ([that can cause an infection]), that the bacterium is involved in the pathogenicity of [a disease, like periodontitis], and that a preventative or therapeutic agent for periodontal disease can be E. faecalis, all taught by Kawada. In addition, Kawada’s method can be modified to include information that heat-treated E. faecalis is used in preventing or treating periodontitis as taught by Kim along with more knowledge that heat-treated E. faecalis has antibiotic elimination capabilities and the ability to help immunosuppressed individuals. The references combined do explicitly teach that heat-treated and non heat-treated E. faecalis treats an infection, inhibition of gingipain activity, or the growth of bacteria all attributed to P. gingivalis with an explanation of the advantageous effects of using the heat-treated bacterium. One of ordinary skill in the art would reasonably expect that the combination of references would effectively accomplish the overall goal of the claimed invention: to treat P. gingivalis using a pharmaceutically effective amount of a killed strain of E. faecalis to treat or reduce the presence of P. gingivalis activity, which may lead to a reduction or occurrence of infections ([which may prevent the progression to a disease]), growth and virulence growth factors attributed the P. gingivalis bacterium. In addition, one of ordinary skill in the art would expect to administer an effective amount of heat-killed E. faecalis necessary to achieve the reduction and/or amelioration of P. gingivalis activity. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Nashara L Moreau whose telephone number is (571)272-5804. The examiner can normally be reached Monday - Thursday, 8 AM - 4 PM ET. 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 U 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. NASHARA L MOREAUExaminer, Art Unit 1655 /SUSAN HOFFMAN/Primary Examiner, Art Unit 1655
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Prosecution Timeline

Feb 22, 2024
Application Filed
Jan 12, 2026
Non-Final Rejection — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12544416
MANUFACTURING METHOD FOR COMPOSITION PROMOTING BONE DENSITY ENHANCEMENT
2y 5m to grant Granted Feb 10, 2026
Study what changed to get past this examiner. Based on 1 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
Grant Probability
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 0 resolved cases by this examiner. Grant probability derived from career allow rate.

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