Office Action Predictor
Last updated: April 16, 2026
Application No. 18/429,672

ELECTRIC DRIVING FORCE DEVICE

Non-Final OA §103§112
Filed
Feb 01, 2024
Examiner
PHAM, LEDA T
Art Unit
2834
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Changzhou Taifei Electric Co., LTD.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
86%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
729 granted / 981 resolved
+6.3% vs TC avg
Moderate +11% lift
Without
With
+11.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
36 currently pending
Career history
1017
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
50.2%
+10.2% vs TC avg
§102
31.0%
-9.0% vs TC avg
§112
16.0%
-24.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 981 resolved cases

Office Action

§103 §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 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 3 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. Regarding claim 3, the phase “a one-way bearing can also be installed between an output shaft and a driven wheel” is indefinite because the term "can” creates doubts as to whether the one-way bearing is in fact installed between an output shaft and a driven wheel and therefore is unclear. “Can” and “capable” are not equivalents. For examination purpose, it is understood as " a one-way bearing is installed between an output shaft and a driven wheel”. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1-3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Tepe et al. (US 11,975,854 B2) in view of Shenouda (US 11,043,884 B2). Regarding claim 1, Tepe teaches a novel electric driving force device, comprising a box body (1202A, fig 12A), driving motor ((1204A-1208A) and inverters (component in side inverter housing 1228A), a reducing mechanism (1202A) composed of driving wheels and driven wheels (1214A, 1216A, 1218A), central bearings (1616B, fig 16B), output shafts (1210A), some standard mechanical fasteners and other parts (1224A). However, Tepe does not teaches more than two sets of driving motors are distributed in a solar planetary manner on a radial spatial plane with an output shaft as a center of gyration, to drive more than one set of reducing mechanism in parallel. Shenouda teaches a multi-rotor electric machine having a plurality of motors (fig 1) wherein more than two sets of driving motors (102-122) are distributed in a solar planetary manner on a radial spatial plane (fig 1) with an output shaft (104) as a center of gyration, to drive more than one set of reducing mechanism (118, 119, and 150) in parallel to promote an efficient use of space and power density so that reduce corresponding cost and weight saving (col 3 ln 40-44). Thus, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify Tepe’s novel electric driving force device with more than two sets of driving motors are distributed in a solar planetary manner on a radial spatial plane with an output shaft as a center of gyration, to drive more than one set of reducing mechanism in parallel as taught by Shenouda. Doing so would promote an efficient use of space and power density so that reduce corresponding cost and weight saving (col 3 ln 40-44). Regarding the claim 2, Tepe in view of Shenouda teaches the claimed invention as set forth in claim 1, Tepe further teaches a one-way bearing (1124B, 1126B) is installed between an output shaft (1110B) and a driving wheel of a driving motor (col 22 ln 47-52). Regarding the claim 3, Tepe in view of Shenouda teaches the claimed invention as set forth in claim 1, Tepe further teaches a one-way bearing (1616A) is installed between an output shaft and a driven wheel (col 31 ln 11-12). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Downs et al. (US 9,991,763 B1) teaches a power plant for a small aircraft with a gas turbine engine that drives a number of electric generators, where a gear box transmit power from the engine shaft to the number of generators, the gear box having a single input shaft that drives a number of driven gears with each driven gear having a generator drive shaft that extends out both sides, and an electric generator connected to each side of the drive shaft. A compact arrangement of generators are formed where each generator can be disengaged from the drive shaft to regulate total electrical output or to prevent a damaged generator from causing damage to other parts of the system or aircraft. Petersen et al. (US 9,487,084 B2) teaches an electric drive includes a motor configuration with a plurality of electric machines, an output configuration, and a transmission stage. The output configuration has a summing stage configured as a Ravigneaux set with a summing internal gear, a summing spider, two sets of summing planets, and two summing suns. The transmission stage has a transmission sun, transmission planets, and a rotatably mounted transmission internal gear. The transmission sun is connected to the output configuration. The transmission planets are each connected to a respective one of the electric machines. The transmission planets roll on the transmission sun and on the transmission internal gear in a torque-transmitting manner. The transmission internal gear is fixedly connected to one of the two summing suns. The transmission sun is fixedly connected to another one of the two summing suns. A drive configuration for a motor vehicle is also provided. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LEDA T PHAM whose telephone number is (571)272-5806. The examiner can normally be reached Mon-Fri 8:00-5:00. 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, Christopher M Koehler can be reached at (571) 272-3560. 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. /LEDA T PHAM/Primary Examiner, Art Unit 2834
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Prosecution Timeline

Feb 01, 2024
Application Filed
Sep 26, 2025
Non-Final Rejection — §103, §112
Apr 04, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

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FLUID DRIVING APPARATUS
2y 5m to grant Granted Apr 14, 2026
Patent 12603534
ELECTRIC MACHINE INCLUDING FIELD COIL SEPARATORS HAVING AN INTEGRATED COOLANT FLOW PATH
2y 5m to grant Granted Apr 14, 2026
Patent 12597822
STATOR ASSEMBLY
2y 5m to grant Granted Apr 07, 2026
Patent 12587053
Stator For Electric Machine and Method of Manufacturing Said Stator
2y 5m to grant Granted Mar 24, 2026
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2y 5m to grant Granted Mar 17, 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
74%
Grant Probability
86%
With Interview (+11.4%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 981 resolved cases by this examiner. Grant probability derived from career allow rate.

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