Prosecution Insights
Last updated: April 19, 2026
Application No. 18/553,392

COMPOSITION FOR PREVENTING OR TREATING CHRONIC KIDNEY DISEASE, COMPRISING COMPOUND THAT INDUCES EXPRESSION OF ANTI-AGING GENE KLOTHO

Non-Final OA §102§DP
Filed
Sep 29, 2023
Examiner
VAJDA, KRISTIN ANN
Art Unit
1622
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Klotho Sciences
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 0m
To Grant
95%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
1331 granted / 1581 resolved
+24.2% vs TC avg
Moderate +10% lift
Without
With
+10.5%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
36 currently pending
Career history
1617
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
11.2%
-28.8% vs TC avg
§102
27.6%
-12.4% vs TC avg
§112
33.6%
-6.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1581 resolved cases

Office Action

§102 §DP
DETAILED ACTION 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 . Claims 1-11 are pending in the instant application. Claims 10 and 11 are rejected. Claims 1-9 are allowed. Information Disclosure Statement The information disclosure statement filed on April 2, 2024 has been considered and a signed copy of form 1449 is enclosed herewith. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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 10 and 11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by KR 2017024522 A. KR 2017024522 A discloses the compound (I) or 2-phenylamino-benzooxazol-5-ol, for example, which can be useful in a health food composition (see English translation of the abstract). Therefore, a health functional food composition for preventing or improving chronic kidney disease and a food composition for preventing or improving chronic kidney disease, comprising a compound represented by Chemical Formula 1 wherein L1 is a single bond, R1 is -OH, R2 is -H, and R3-R7 are -H of the claims are anticipated by the reference. With respect to the art rejection above, it is noted that the reference does not teach that the composition can be used in the manner instantly claimed (i.e., for preventing or improving chronic kidney disease). However, the intended use of the claimed compositions does not patentably distinguish the compositions, per se, since such disclosed use is inherent in the reference composition. In order to be limiting, the intended use must create a structural difference between the claimed compositions and the prior art composition. In the instant case, the intended use does not create a structural difference, thus the intended use is not limiting. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 10 and 11 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 8 and 9 of copending Application No. 18/553,414 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other for the reasons given below. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Copending Application No. 18/553,414 claims a health functional food composition and a food composition for preventing or improving neurodegenerative disease, comprising a compound represented by the same Chemical Formula 1 or a pharmaceutically acceptable salt thereof as is used in the health functional food composition and food composition for preventing or improving chronic kidney disease of the instant claims. Since the intended use of the claimed compositions does not patentably distinguish the compositions, per se, since such disclosed use is inherent in the reference compositions. In order to be limiting, the intended use must create a structural difference between the claimed compositions and the prior art compositions. In the instant case, the intended use does not create a structural difference, thus the intended use is not limiting. Therefore, the health functional food composition and food composition claimed in the reference anticipate those of the instant claims. Allowable Subject Matter Claims 1-9 are allowed. No prior art was found. The closest prior art is WO 2016/176473 A1 which discloses compounds, such as compounds of structural Formula I (see claim 1), II (see claim 2) and III (see claim 4), that are useful for the treatment of renal conditions (see abstract). The reference does not disclose using a compound which fits within the scope of those used in the method of the claims nor does it disclose an obvious variant (i.e., L1 in the compounds of instant Chemical Formula 1 is a single bond or PNG media_image1.png 44 38 media_image1.png Greyscale ). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KRISTIN ANN VAJDA whose telephone number is (571)270-5232. The examiner can normally be reached Mon-Fri 6:00-4:00. 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, James Alstrum-Acevedo can be reached at 571-272-5548. 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. /KRISTIN A VAJDA/Primary Examiner, Art Unit 1622
Read full office action

Prosecution Timeline

Sep 29, 2023
Application Filed
Dec 17, 2025
Non-Final Rejection — §102, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600712
AMINO-PYRIMIDINE AMIDES
2y 5m to grant Granted Apr 14, 2026
Patent 12600745
PROCESS FOR PREPARING B-[(7a, 1713)-17-HYDROXY-7-[9-[(4,4,5,5,5-PENTAFLUOROPENTYL)SULFINYL]NONYL]ESTRA-1,3,5(10)-TRIEN-3-YL]-BORONIC ACID
2y 5m to grant Granted Apr 14, 2026
Patent 12590094
COMPOUNDS FOR THE TREATMENT OF NEURODEGENERATIVE AND METABOLIC DISORDERS
2y 5m to grant Granted Mar 31, 2026
Patent 12590111
FLAVONOID DERIVATIVE FOR TREATING DENTAL CARIES
2y 5m to grant Granted Mar 31, 2026
Patent 12590093
INDOLO[2',3':3,4]PYRIDO[2,1-B]QUINAZOLINE COMPOUND AND USE THEREOF
2y 5m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
84%
Grant Probability
95%
With Interview (+10.5%)
2y 0m
Median Time to Grant
Low
PTA Risk
Based on 1581 resolved cases by this examiner. Grant probability derived from career allow 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