Prosecution Insights
Last updated: April 19, 2026
Application No. 18/544,551

ACCUMULATOR WITH FAST FILL SUPPLY VALVE AND BRAKE SYSTEM USING SAME

Non-Final OA §DP
Filed
Dec 19, 2023
Examiner
KING, BRADLEY T
Art Unit
3616
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
ZF Active Safety US Inc.
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
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

§DP
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 . Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claim 1-2 and 8-14 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claim 6-11 and 13-15 of copending Application No. 18421463 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because they define substantially the same structures with slightly different wording and in different combinations. Claim 1 differs from reference claim 13 in that the details of the MPA fill valve are not recited, however, they are recited in dependent claim 14. Claim 1 also differs from reference claim 13 in that the powered MPA one-way valve is defined more broadly as a powered valve, as opposed to the powered solenoid valve of the reference claim. A powered valve is obvious in view of a powered solenoid valve. Claim 1 also differs from reference claim 13 in that reciprocal motion of the MPA one-way valve poppet occurs at least partially responsive to a predetermined amount of fluid pressure differential between the MPA cavity and the at least one corresponding wheel brake whereas the reference claim defines a fluid pressure differential between the source of pressurized hydraulic fluid and the MPA cavity. However, this feature is set forth in claim dependent 15. Claim 1 is therefore an obvious combination of claims 13-15. Claim 2 recites “the source of pressurized hydraulic fluid is at least one of a pump piston of a secondary brake module and a master cylinder.” This is the obvious combination of claims 13-15 with the master cylinder of claim 17. Claim 8 recites details of the MPA one-way valve corresponding to reference claim 6. This is the obvious combination of claims 13-15 with claim 6. Claim 9 recites details of the MPA one-way valve corresponding to reference claim 7. This is the obvious combination of claims 13-15 with claim 7. Claim 10 recites details of the MPA one-way valve corresponding to reference claim 8. This is the obvious combination of claims 13-15 with claim 8. Claim 11 recites details of the MPA one-way valve corresponding to reference claim 9. This is the obvious combination of claims 13-15 with claim 9. Claim 12 recites details of the MPA one-way valve corresponding to reference claim 11. This is the obvious combination of claims 13-15 with claim 11. Claim 13 recites details of the MPA one-way valve corresponding to reference claim 10. This is the obvious combination of claims 13-15 with claim 10. Claim 14 recites details of the MPA one-way valve corresponding to reference claim 15. This is the obvious combination of claims 13-15. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. It is noted that reference application has been allowed and has a projected patent number of 12590643 and issue date of 3/31/2026. Allowable Subject Matter Claims 15-20 are allowed. Claims 3-7 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. 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
Read full office action

Prosecution Timeline

Dec 19, 2023
Application Filed
Jan 17, 2024
Response after Non-Final Action
Mar 21, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Vehicle Braking System
2y 5m to grant Granted Apr 14, 2026
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ELECTRONIC BRAKE DEVICE
2y 5m to grant Granted Apr 14, 2026
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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

1-2
Expected OA Rounds
71%
Grant Probability
95%
With Interview (+24.4%)
3y 3m
Median Time to Grant
Low
PTA Risk
Based on 940 resolved cases by this examiner. Grant probability derived from career allow rate.

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