Prosecution Insights
Last updated: April 19, 2026
Application No. 18/380,654

SEQUENTIAL TELESCOPIC PASSIVE DAMPER

Non-Final OA §102
Filed
Oct 17, 2023
Examiner
TORRES WILLIAMS, MELANIE
Art Unit
3616
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Beijingwest Industries Co. 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 1-4 and 11-13 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hirahara (JP H11336824 A) Re claims 1, 11 and 13, Hirahara disclose a damper assembly comprising: a inner damper (1) and an outer damper (6) in a telescopic configuration; the inner damper including a first tube, a rod (3) disposed at least partially within the first tube and coaxially therewith, and a main piston (4) connected to the rod and slidably disposed within the first tube, the main piston dividing an interior of the first tube into a first chamber and a second chamber; the outer damper including a second tube disposed coaxially around the inner damper and a second piston connected to an axial end of the first tube and dividing an interior of the second tube into an upper oil chamber and a lower oil chamber, the second piston defining a second passage providing fluid communication between the upper oil chamber and the lower oil chamber; and a displacement fluid passage (19) providing fluid communication between the first chamber and the upper oil chamber. Since fluid is displaced between passages 10, 14 and 19, passage 19 is capable of providing communication between the first chamber of the inner damper and the upper oil chamber of the outer damper. (Fig. 10-11) Re claims 2 and 11, the outer damper (6) of Hirahara is configured to move, during a compression stroke, from a full-extended position toward a compressed position after the main piston of the inner damper (1) has moved substantially completely toward the second piston. (Fig. 10-11, Machine Translation Page 8) The limitation is a functional recitation and it is the Examiner’s position that the apparatus is capable of the recited function. Re claims 3 and 11, the main piston of the inner damper (1) of Hirahara is configured to move, during a rebound stroke, away from the second piston and toward an extended position after the outer damper (6) has moved substantially completely to a full-extended position. (Fig. 10-11, Machine Translation Page 8) The limitation is a functional recitation and it is the Examiner’s position that the apparatus is capable of the recited function. Re claims 4 and 12, Hirahara discloses wherein the outer damper (6) is configured as a twin-tube damper including an outer tube disposed coaxially around the second tube and defining an annular chamber therebetween. (Fig. 11) Allowable Subject Matter Claims 5-10 and 14-19 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Shen, DeKock, Deferme, and Deferme et al. teach similar damper assemblies. 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 March 7, 2026
Read full office action

Prosecution Timeline

Oct 17, 2023
Application Filed
Mar 07, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12583421
DRUM BRAKE WITH ROTATABLE BRAKE SHOE ASSEMBLY
2y 5m to grant Granted Mar 24, 2026
Patent 12583547
METHOD AND SYSTEM FOR DETECTING THE SPEED OF A BICYCLE
2y 5m to grant Granted Mar 24, 2026
Patent 12577993
REDUCED PROFILE PISTON ADJUSTER
2y 5m to grant Granted Mar 17, 2026
Patent 12570257
BRAKING SYSTEM FOR A VEHICLE
2y 5m to grant Granted Mar 10, 2026
Patent 12570370
CONTROL SYSTEM FOR HUMAN-POWERED VEHICLE
2y 5m to grant Granted Mar 10, 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
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.

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