Prosecution Insights
Last updated: October 22, 2026
Application No. 18/690,354

DAMPING FORCE GENERATION MECHANISM

Non-Final OA §102§112
Filed
Mar 08, 2024
Priority
Sep 15, 2021 — JP 2021-150023 +1 more
Examiner
RASHID, MAHBUBUR
Art Unit
3616
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Hitachi Ltd.
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
598 granted / 882 resolved
+15.8% vs TC avg
Strong +20% interview lift
Without
With
+20.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
33 currently pending
Career history
920
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
45.7%
+5.7% vs TC avg
§102
27.2%
-12.8% vs TC avg
§112
22.3%
-17.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 882 resolved cases

Office Action

§102 §112
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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 06/06/2024. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Election/Restrictions Applicant’s election without traverse of claims 1, 2 and 4 in the reply filed on 08/26/2026 is acknowledged. Claims 3 and 5-11 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 08/26/2026. 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 4 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 4 recites the limitation "the other ranges" in line 5 of the claim. There is insufficient antecedent basis for this limitation in the claim. 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, 2 and 4 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yamashita (US 11,199,241 B2). Regarding claim 1, Yamashita discloses a damping force generation mechanism (41 in fig. 2) comprising: a biasing force generation member (56, 127, 128) that causes a first damping force generation member (145) having a bottomed tubular shape and disposed on a side of an opening to generate a biasing force in a valve closing direction; a regulation member (18) that is provided on a side of a bottom portion of the biasing force generation member and includes passages formed to establish communication between a one-side chamber and an other-side chamber; a frequency sensitive mechanism (41, 52, 95, 96, 121) that is provided between the regulation member (18) and the first damping force generation member (145), is provided with a movable portion (95, 96) in a movable manner, and makes the biasing force variable; and a seat forming member (60) that is provided at the biasing force generation member (56, 127, 128) on the side of the opening and includes a seat formed therein for the first damping force generation member (145) to be seated. Re-claim 2, Yamashita discloses wherein the regulation member (18) is a piston that is movably inserted into a cylinder (3, 4) and is fixed on a side of one end of a shaft member (21) provided along a center axis of the cylinder, includes a recessed portion (140) that has a smaller dimension in an axial direction in a predetermined range on an inner side in a radial direction than in the other ranges, and at least partially accommodates the frequency sensitive mechanism in the recessed portion. Re-claim 4, Yamashita discloses a support portion that supports one side of the movable portion, wherein the biasing force generation member (56, 127, 128) includes an accommodating portion that accommodates the movable portion (95, 96), and the movable portion (95, 96) includes a first portion (96) that is elastically deformable, and a second portion (95) with a plate shape that comes into contact with a surface of the first portion on the other side and has at least an outer section, which is a part on an outer side in a radial direction, allowed to be displaced in an axial direction. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MAHBUBUR RASHID whose telephone number is (571)272-7218. The examiner can normally be reached Monday - Friday 9am to 10pm EST. 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 5712727124. 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. /MAHBUBUR RASHID/ Examiner, Art Unit 3616 /Robert A. Siconolfi/ Supervisory Patent Examiner, Art Unit 3616
Read full office action

Prosecution Timeline

Mar 08, 2024
Application Filed
Oct 01, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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DAMPER ASSEMBLY INCLUDING INTAKE VALVE IN FLUID CHAMBER
4y 0m to grant Granted Oct 20, 2026
Patent 12767099
AIR TREATMENT DEVICE
3y 8m to grant Granted Oct 20, 2026
Patent 12753819
ZERO POISSON'S RATIO STRUCTURE AND A PLANAR STRUCTURE OF ZERO POISSON'S RATIO IN WHICH THE STRUCTURE IS MATRIXED IN A PLANE
4y 6m to grant Granted Oct 06, 2026
Patent 12753813
BRAKE DEVICE AND VEHICLE
3y 3m to grant Granted Oct 06, 2026
Patent 12753810
TORQUE PAD
3y 5m to grant Granted Oct 06, 2026
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
68%
Grant Probability
88%
With Interview (+20.5%)
3y 3m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 882 resolved cases by this examiner. Grant probability derived from career allowance rate.

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