Prosecution Insights
Last updated: April 19, 2026
Application No. 18/567,284

T-TYPE CALCIUM CHANNEL BLOCKER

Non-Final OA §102§112
Filed
Dec 05, 2023
Examiner
GONZALEZ, LUISALBERTO
Art Unit
1624
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Fuso Pharmaceutical Industries Ltd.
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
2y 9m
To Grant
99%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
84 granted / 135 resolved
+2.2% vs TC avg
Strong +48% interview lift
Without
With
+48.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
55 currently pending
Career history
190
Total Applications
across all art units

Statute-Specific Performance

§101
2.8%
-37.2% vs TC avg
§103
37.0%
-3.0% vs TC avg
§102
12.5%
-27.5% vs TC avg
§112
29.6%
-10.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 135 resolved cases

Office Action

§102 §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 . Detailed Action Filing Receipt and Priority The filing receipt mailed 05/07/2024 states that the instant application is a 371 of PCT/JP2022/022847, filed 06/06/2022, which claims foreign benefit of JAPAN 2021-095405, filed 06/07/021. The instant claims find support in the foreign application. Therefore, the effective filing date is 06/07/2021. Information Disclosure Statement The information disclosure statements submitted 02/26/2024, 08/29/2025, and 01/09/2026 have been considered. Species Election Applicant elected compound 5, shown below, in the phone call made 01/30/2026. Elected Compound PNG media_image1.png 154 262 media_image1.png Greyscale At examiner’s discretion, search and examination has been broaden to include all compounds represented by compound of formula I in claim 1. Drawings The drawings are objected to for at least Fig. 5. A higher quality image of the figure is requested as the text is difficult to read. Rejections Claim Rejections - 35 USC § 112(b) 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. Claims 22, 25-27 and 27 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. Claim 22 states “R1 is C1-10 alkyl, C(O)-C1-10 alkyl, C1-6 alkylene-R1a or C(O)-C1-6 alkylene R1a” and then states “wherein the alkyl and alkylene…”. This is repeated for R2 and is also found in claims 25-27 and 37. The phrase “the alkyl and alkylene” is contradicted by the first recitation as there are multiple alkyl and alkylene within the first recitation. Applicant may amend the claim to remove “the” to overcome the rejection. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 22, 24-28, 31-35, is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by STN (STN Registry, online, 08 August 2012, retrieved from STN, CAS registry no. 1387968-70-8, of the record). STN discloses the compound below which embraces the limitations of the claims. PNG media_image2.png 300 556 media_image2.png Greyscale Claim(s) 22-31 and 37-41 is/are rejected under 35 U.S.C. 102(a)(1) and (a)(2) as anticipated by Kyle (WO 01/39775). Kyle discloses the following compound on p. 8. PNG media_image3.png 48 570 media_image3.png Greyscale Structure: PNG media_image4.png 104 200 media_image4.png Greyscale Regarding claims 37-41, claims 37-41 are drawn to compositions. Claim 37 specifically states “A pharmaceutical composition comprising a compound of formula (I)…”. Dependent claims 38-41 claim properties of the composition which are “suitable for treating a disease associated with the activation of T-type calcium channels” (claim 38), a listing of diseases (claim 39), pain (claim 40), and pruritus (claim 41). The recitation of “suitable for treating…” indicates that the limitations are properties of the composition. Via the current claim language, the composition of claim 38 would have the property of being suitable to treat any of the diseases claimed. Therefore, the teaching of the compound in Kyle and the contemplation of pharmaceutical compositions comprising the compound make claims 37-41 obvious. Kyle further claims pharmaceutical compositions comprising the compound above in reference claim 13. Kyle anticipates claims 22-31 and 37-41. Allowable Subject Matter Claim 36 is allowed. A search did not result in any are that could be applied to claim 36. Conclusion Claims 22-35 and 37-41 are rejected. Claim 36 is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LUISALBERTO GONZALEZ whose telephone number is (571)272-1154. The examiner can normally be reached M-F 8:30-5:30. 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, Jeffrey Murray can be reached at (571) 272-9023. 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. /L.G./Examiner, Art Unit 1624 /SUSANNA MOORE/Primary Examiner, Art Unit 1624
Read full office action

Prosecution Timeline

Dec 05, 2023
Application Filed
Jan 30, 2026
Examiner Interview (Telephonic)
Feb 09, 2026
Non-Final Rejection — §102, §112 (current)

Precedent Cases

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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
62%
Grant Probability
99%
With Interview (+48.2%)
2y 9m
Median Time to Grant
Low
PTA Risk
Based on 135 resolved cases by this examiner. Grant probability derived from career allow rate.

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