Prosecution Insights
Last updated: April 19, 2026
Application No. 18/281,334

DISC BRAKE AND CARRIER

Non-Final OA §102
Filed
Sep 11, 2023
Examiner
TORRES WILLIAMS, MELANIE
Art Unit
3616
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Hitachi Astemo, Ltd.
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
97%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allow Rate
628 granted / 742 resolved
+32.6% vs TC avg
Moderate +12% lift
Without
With
+12.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
44 currently pending
Career history
786
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
37.5%
-2.5% vs TC avg
§102
46.1%
+6.1% vs TC avg
§112
15.1%
-24.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 742 resolved cases

Office Action

§102
DETAILED ACTION 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 § 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 1-15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Matsuda (JP 2017219159 A). Re claim 1, Matsuda discloses a disc brake comprising: a friction pad (21a, 21b) that is provided at a position next to a disc rotor (5) in a disc axial direction and provided to be able to move in the disc axial direction; and a carrier (24, 25) that has an inner circumferential surface supporting the friction pad and formed along an outer circumferential edge of the disc rotor and a filter portion (20, 20c) provided on the inner circumferential surface in a manner of facing the outer circumferential edge of the disc rotor. (Fig. 2, 4, 14, 18) Re claim 2, Matsuda discloses wherein the filter portion (20, 20c) is provided on a disc exit side of the carrier. Re claim 3, Matsuda discloses wherein the filter portion (20, 20c) is constituted of a dust collection portion (47a, 41b) and an attachment plate (47b-47d, 74) for attaching the dust collection portion to a carrier main body of the carrier. Re claim 4, Matsuda discloses wherein the attachment plate (47b-47d, 73) is provided with an attachment portion (45a) for attachment with respect to the carrier main body. Re claim 5, Matsuda discloses wherein the attachment plate (47b-47d, 74) includes a position setting plate portion (43, 75, 76) which positionally sets the dust collection portion (47a) and is unlikely to be detached from the carrier main body, and a clip-type plate portion (74) which supports the dust collection portion and is able to be detached from the carrier main body. Re claim 6, Matsuda discloses wherein the position setting plate portion (43) is provided in a direction of a disc center axis with respect to the dust collection portion (47a). Re claim 7, Matsuda discloses wherein the clip-type plate portion (74) is provided next to the dust collection portion (41b) in a disc circumferential direction. Re claim 8, Matsuda discloses wherein the attachment plate is provided with a hole (44a, 44b, 45). Re claim 9, Matsuda discloses wherein the dust collection portion (47a, 41b) is provided on both sides a disc entrance side and a disc exit side of the carrier. (Fig. 2) Re claim 10, Matsuda discloses wherein the filter portion (20c) is made up of an elastic body. Re claim 11, Matsuda discloses wherein the carrier is provided with a hole (45) at a position of the filter portion. Re claim 12, Matsuda discloses wherein the filter portion (20) is made up of a first filter portion and a second filter portion. (Fig. 8) Re claim 13, Matsuda discloses wherein the first filter portion (20) is provided on a disc exit side of the carrier. (Fig. 2) Re claim 14, Matsuda discloses wherein the filter portion (20, 20c) is continuously provided from a disc entrance side to a disc exit side of the carrier. Re claim 15, Matsuda discloses a carrier (24) comprising: an inner circumferential surface that supports a friction pad and is formed along an outer circumferential edge of a disc rotor (5); and a filter portion (20, 20c) that is provided on the inner circumferential surface in a manner of facing the outer circumferential edge of the disc rotor. (Fig. 2) Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Bock teaches a similar disc brake. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MELANIE TORRES WILLIAMS whose telephone number is (571)272-7127. The examiner can normally be reached Tuesday - Friday 7:00AM-3:00PM. 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, Robert Siconolfi can be reached at 571-272-7124. 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. /MELANIE TORRES WILLIAMS/ Primary Examiner Art Unit 3616 MTW December 12, 2025
Read full office action

Prosecution Timeline

Sep 11, 2023
Application Filed
Dec 12, 2025
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
85%
Grant Probability
97%
With Interview (+12.3%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 742 resolved cases by this examiner. Grant probability derived from career allow rate.

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