Prosecution Insights
Last updated: April 19, 2026
Application No. 17/919,521

CHECK VALVE AND BRAKE SYSTEM INCLUDING SAME

Non-Final OA §112
Filed
Oct 17, 2022
Examiner
KING, BRADLEY T
Art Unit
3616
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
HL Mando Corporation
OA Round
3 (Non-Final)
71%
Grant Probability
Favorable
3-4
OA Rounds
3y 3m
To Grant
95%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allow Rate
666 granted / 940 resolved
+18.9% vs TC avg
Strong +24% interview lift
Without
With
+24.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
53 currently pending
Career history
993
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
36.7%
-3.3% vs TC avg
§102
30.1%
-9.9% vs TC avg
§112
29.7%
-10.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 940 resolved cases

Office Action

§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 . Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 7-8 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 7 recites “wherein each valve part of the plurality of valve parts further comprises a valve seat including an orifice through which fluid passes, an elastic member elastically supporting one side of the opening/closing members which is selectively in contact with the orifice, and a filter cap engaged with the valve seat to receive the opening/closing members and supporting the other side of the elastic member.” Parent claim 1 has been amended to recite “at least one of the plurality of valve parts are provided in the shape of a lip seal”. This is specific to the embodiments of figures 9-12. The embodiment of 9 shows a single valve part 320 having valve seat 321 including an orifice through which fluid passes, an elastic member 323 elastically supporting one side of the opening/closing members 322 which is selectively in contact with the orifice, and a filter cap 324 engaged with the valve seat to receive the opening/closing members and supporting the other side of the elastic member 323, but does not support the recitation that each valve part 320/330/340 of the plurality of valve parts have this construction. The embodiment of figure 10 lacks each valve part 420/430/440 of the plurality of valve parts have this construction. The claim therefore is not supported by the original disclosure and constitutes new matter. 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 8 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 8 recites “a valve seat of another adjacent valve part is engaged with a filter cap of any one of the plurality of valve parts”. It is not clear if “a valve seat” and “a filter cap” correspond to one of the plurality of valve seats and filter caps of parent claim 7, or are additional elements. Allowable Subject Matter Claims 1 and 17-18 are allowed. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRADLEY T KING whose telephone number is (571)272-7117. The examiner can normally be reached 10:30-5:00 PM. 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. /BRADLEY T KING/Primary Examiner, Art Unit 3616 BTK
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Prosecution Timeline

Oct 17, 2022
Application Filed
Mar 20, 2025
Non-Final Rejection — §112
Jun 26, 2025
Response Filed
Oct 02, 2025
Final Rejection — §112
Dec 08, 2025
Response after Non-Final Action
Jan 06, 2026
Request for Continued Examination
Feb 13, 2026
Response after Non-Final Action
Mar 06, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600332
Vehicle Braking System
2y 5m to grant Granted Apr 14, 2026
Patent 12600334
ELECTRONIC BRAKE DEVICE
2y 5m to grant Granted Apr 14, 2026
Patent 12600337
HYDRAULIC BRAKE APPARATUS FOR VEHICLE AND CONTROL METHOD THEREFOR
2y 5m to grant Granted Apr 14, 2026
Patent 12601385
SHOCK ABSORBER
2y 5m to grant Granted Apr 14, 2026
Patent 12600338
AIR MANAGEMENT SYSTEM AND METHOD FOR REUSING EXHAUSTED AIR
2y 5m to grant Granted Apr 14, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
71%
Grant Probability
95%
With Interview (+24.4%)
3y 3m
Median Time to Grant
High
PTA Risk
Based on 940 resolved cases by this examiner. Grant probability derived from career allow rate.

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