Prosecution Insights
Last updated: October 04, 2026
Application No. 18/880,136

DRUG FOR LOWERING BLOOD LDL CHOLESTEROL

Non-Final OA §102
Filed
Dec 30, 2024
Priority
Jul 15, 2022 — JP 2022-113930 +1 more
Examiner
KENYON, JOHN S
Art Unit
Tech Center
Assignee
Kowa Company, Ltd.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
7m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
760 granted / 954 resolved
+19.7% vs TC avg
Strong +18% interview lift
Without
With
+18.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
50 currently pending
Career history
996
Total Applications
across all art units

Statute-Specific Performance

§101
4.2%
-35.8% vs TC avg
§103
16.0%
-24.0% vs TC avg
§102
21.9%
-18.1% vs TC avg
§112
42.2%
+2.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 954 resolved cases

Office Action

§102
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 . 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. Current Status of 18/880,136 This Office Action is responsive to the amended claims of 30 December 2024. Claims 6-10 and 21 have been examined on the merits. Claims 6-10 are currently amended. Claim 21 is new. Priority The effective filing date is 14 July 2023. Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statements (IDS) submitted on 2 January 2026; 6 March 2025; and 30 December 2024, are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statements are being considered by the examiner. 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 6-10 and 21 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by: NAKAJIMA (Nakajima, A., et. al. “Randomised clinical trial: Pemafibrate, a novel selective peroxisome proliferator-activated receptor α modulator (SPPARMα), versus placebo in patients with non-alcoholic fatty liver disease.” Aliment Pharmacol. Ther. (2021), 54, 1263-1277, provided by Applicants and referenced in IDS of 30 December 2024). The prior art NAKAJIMA teaches that (R)-2-[3-[[N-(benzoxazol-2-yl)-N-3-(4- methoxyphenoxy)propyl]aminomethyl]phenoxy]butyric acid (hereinafter referred to as “pemafibrate”) was used in a method to reduce blood LDL-C (blood LDL cholesterol) to a subject in need thereof (see page 1274), thereby anticipating instant claim 6. This also anticipates instant claims 8-9 as high blood LDL-C levels are a tell-tale sign of “hypercholesterolemia”. Furthermore, NAKAJIMA Table 1 of page 1267 teaches that the subjects receiving pemafibrate were taking concomitant statins, which would have to mean ipso facto that the statins were at least insufficient (else, why else would these patients need to further lower their LDL-C levels?). Thus, this anticipates instant claims 7, 10, and 21. Conclusion No claims are presently allowable as written. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOHN S KENYON whose telephone number is (571)270-1567. The examiner can normally be reached Monday-Friday 10a-6p. 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, Andrew D Kosar can be reached at (571) 272-0913. 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. /JOHN S KENYON/Primary Patent Examiner, Art Unit 1625
Read full office action

Prosecution Timeline

Dec 30, 2024
Application Filed
Sep 24, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12747222
CHEMILUMINESCENCE PROBES FOR TUBERCULOSIS
4y 1m to grant Granted Sep 29, 2026
Patent 12746247
TETRACYCLINE DERIVATIVES FOR TREATING NEURODEGENERATIVE OR NEUROINFLAMMATORY DISEASES
3y 5m to grant Granted Sep 29, 2026
Patent 12747237
PYRAZOLYL COMPOUNDS AS KV7 CHANNEL ACTIVATORS
1y 6m to grant Granted Sep 29, 2026
Patent 12741942
SUBSTITUTED PYRIDAZINE COMPOUND
4y 0m to grant Granted Sep 22, 2026
Patent 12735415
PROCESS FOR THE PREPARATION OF 2-CYANOETHYL (4S)-4-(4-CYANO-2-METHOXY-PHENYL)-5-ETHOXY-2,8-DIMETHYL-1,4-DIHYDRO-1,6-NAPHTHYRIDINE-3-CARBOXYLATE BY RESOLUTION OF RACEMATES BY MEANS OF DIASTEREOMERIC TARTARIC ACID ESTERS
4y 5m to grant Granted Sep 15, 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
80%
Grant Probability
98%
With Interview (+18.3%)
2y 4m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 954 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