Prosecution Insights
Last updated: May 04, 2026
Application No. 18/231,597

ELECTRICALLY-DRIVEN POWER UNIT OF COMPACT BATTERY PACK AND WORKING MACHINE

Non-Final OA §102
Filed
Aug 08, 2023
Priority
Sep 02, 2022 — CN 202211071749.6
Examiner
MULLINS, BURTON S
Art Unit
2834
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Chongqing Tuosi Electric Power Technology Co. Ltd.
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
70%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
900 granted / 1306 resolved
+0.9% vs TC avg
Minimal +1% lift
Without
With
+0.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
43 currently pending
Career history
1349
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
43.5%
+3.5% vs TC avg
§102
24.7%
-15.3% vs TC avg
§112
28.2%
-11.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1306 resolved cases

Office Action

§102
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. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim s 1 -2 & 9-10 are rejected under 35 U.S.C. 102 (a)(1) and 102(a)(2) as being anticipated by Braun et al. (US 5,819,513 ) . Regarding claim 1, Braun teaches a n electrically-driven power unit of a compact battery pack, comprising a motor 70 and a battery pack (upper housing /batteries ) 22/ 40/42 ; wherein the motor 70 is mounted on a base ( support plate ) 118- ; the battery pack is supported on an upper part of the motor through a supporting frame (lower housing) 2 4 ; an arch-shaped supporting portion (generally motor receptacle 104) matched with the upper part of the motor is formed on an upper part of the supporting frame 24 (Fig.6) ; a concave portion (formed by bridge section 50) matched with the arch-shaped supporting portion 104 is arranged at a bottom of the battery pack; and the arch-shaped supporting portion of the supporting frame 24 is supported in the concave portion 50 of the battery pack (Fig. 3 ) . Regarding claim 2, a first mounting portion and a second mounting portion are respectively arranged on both sides of the arch-shaped supporting portion on the supporting frame (i.e., corresponding to parts of upper housing 22 forming first and second battery receptacles 36 & 38) , and areas of the bottom of the battery pack located on both sides of the concave portion are respectively supported on the first mounting portion and the second mounting portion (i.e., bottom portions of first and second batteries 40 & 42; Fig.3) . Regarding claim 9, an output shaft 72 of the motor is in a … vertical direction. Regarding claim 10, Braun teaches a working machine (lawnmower) 10 comprising the electrically-driven power unit of a compact battery pack according to claim 1. Allowable Subject Matter Claims 3-8 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. With reference to Figs.1 , 3&5 , the p rior art of record does not appear to further teach the claimed electrically-driven power unit of a compact battery pack, comprising , inter alia, “ cushion pads [240] … arranged between the bottom of the battery pack [300] and the arch-shaped supporting portion [210] , the first mounting portion [220] and the second mounting portion [230] on the supporting frame [200] ” (claim 3); or “ wherein a side part of the first mounting portion [220] is vertically aligned with a side part on a same side of the supporting frame, and the second mounting portion [230] is of a cantilever structure formed by extending the side part of the supporting frame outwards ” (claim 4); or “wherein the battery pack [300] comprises a box body [320] and a battery set [330] and a battery management system [340] arranged in the box body, wherein an upper inclination angle of the box body on one side of the second mounting portion is set as a mounting space for the battery management system, and a rest part in the box body is set as a mounting space for the battery set ” (claim 5); or “ wherein supports [410] are arranged on both sides of the motor on the base, lower parts of both sides of the supporting frame [200] are respectively mounted on the supports on the corresponding sides through elastic vibration damping bodies [420] , and the elastic vibration damping bodies on both sides are obliquely arranged, such that axes of the elastic vibration damping bodies on both sides intersect above; and a center of gravity [350] of the battery pack is located in a lower area where the axes of the elastic vibration damping bodies on both sides intersect ” (claim 6). These determinations are based on keyword and citation searches performed in a limited number of subclasses. Artificial intelligence search tools were employed. Nomenclature in the art is inconsistent. Keyword searches in the foreign art was limited to the text of the abstract. For these reasons, the scope of the search was necessarily truncated and relevant art classified outside the subclasses searched and/or using different terminology or keywords may not have been reviewed. See the Search Notes for details. 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 FILLIN "Examiner name" \* MERGEFORMAT BURTON S MULLINS whose telephone number is FILLIN "Phone number" \* MERGEFORMAT (571)272-2029 . The examiner can normally be reached FILLIN "Work Schedule?" \* MERGEFORMAT 9-5 . 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, FILLIN "SPE Name?" \* MERGEFORMAT Tulsidas C Patel can be reached at FILLIN "SPE Phone?" \* MERGEFORMAT 571-272-2098 . 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. /BURTON S MULLINS/ Primary Examiner, Art Unit 2834
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Prosecution Timeline

Aug 08, 2023
Application Filed
Mar 27, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12609582
POWER TOOL
2y 3m to grant Granted Apr 21, 2026
Patent 12609637
TRANSDUCER WIRING BOARD AND METHOD FOR MANUFACTURING THE SAME
2y 7m to grant Granted Apr 21, 2026
Patent 12606029
SYSTEMS FOR MOLDING METAL SHEET INTO INVERTER FOR IMPROVING EMC PERFORMANCE
2y 5m to grant Granted Apr 21, 2026
Patent 12597825
MOTOR AND CLEANER COMPRISING THE SAME
2y 9m to grant Granted Apr 07, 2026
Patent 12592614
ELECTRIC MACHINE
2y 6m to grant Granted Mar 31, 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
69%
Grant Probability
70%
With Interview (+0.9%)
2y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1306 resolved cases by this examiner. Grant probability derived from career allowance rate.

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