Prosecution Insights
Last updated: October 04, 2026
Application No. 18/509,094

AXIAL MOTOR

Final Rejection §112
Filed
Nov 14, 2023
Priority
May 18, 2021 — RE 10-2021-0064004 +1 more
Examiner
PHAM, LEDA T
Art Unit
2834
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Eflow Co. Ltd.
OA Round
2 (Final)
75%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
758 granted / 1013 resolved
+6.8% vs TC avg
Moderate +12% lift
Without
With
+11.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
18 currently pending
Career history
1028
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
54.7%
+14.7% vs TC avg
§102
26.5%
-13.5% vs TC avg
§112
16.0%
-24.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1013 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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 8/10/26 is being considered by the examiner. Response to Amendment This office action is in response to amendment filed on 10/16/25. Regarding the amendment, claims 1-8 are present for examination. Response to Arguments Applicant’s arguments, see remark, filed 10/16/25, with respect to amended claims 1-8 have been fully considered and are persuasive. Regarding to the amendment, the rejection of claims 1-8 has been withdrawn. 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. Claims 1-8 are 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 1, the phrase “protruding ends of the rotor fixing plate contact each other with the gap stopper therebetween” is indefinite because it is vague. Does the rotor fixing plate has multiple of protruding ends wherein they are contacted each other? Or each of the rotor fixing plate has a protruding end, and the protruding ends are contacted each other. Applicant is required to further specify the structural features and configuration of the rotor fixing plate with the protruding ends. For examination purpose, it is understood as “each rotor fixing plate comprising a protruding end, and protruding ends are contacted each other with a gap stopper therebetween”. Furthermore, the limitation “the gap stopper” in the last line of the claim lacks of antecedent basis. Claims 2-8 are rejected because of their dependency. Allowable Subject Matter Claims 1-8 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. The following is an examiner’s statement of reasons for allowance: the record of prior art by itself or in combination with other references does not show an axial motor comprising: a shaft; a stator means having a stator casing, a core of which both ends are exposed from both ends of the stator casing in an axial direction, and a coil accommodated in the stator casing so as to encompass the core, and having the shaft penetratively inserted therein; a plurality of rotor means having a plurality of magnets spaced certain distances apart in a radial direction of the shaft and arranged in a circumferential direction to face the core exposed from one end of the stator casing in the axial direction of the shaft, and a rotor fixing plate, which fixes the magnets such that one surface of the magnet facing the core is exposed and which is inserted into the stator means and fixed and coupled so as to be integrally rotatable with the shaft, and being inserted into both ends of the stator means; a top lid into which the shaft is rotatably inserted, and which is coupled to be attachable/detachable to/from the stator casing so that a rotor means located at a first end of the shaft is accommodated therein; and a bottom lid into which the shaft is rotatably inserted, and which is coupled to be attachable/detachable to/from the stator casing so that a rotor means located at a second end of the shaft is accommodated therein, wherein, when one end of the rotor means is inserted into the stator means, facing surfaces of the magnets and the core are located at certain distances, wherein each rotor fixing plate comprising a protruding end, and the protruding ends are contacted each other with a gap stopper therebetween. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Takada et al. (US 20210218307 A1) is considered pertinent at least in teaching the use of flat, rectangular wiring in the creation of a coil on a stator core (Takada et al., Fig. 5B). Miyata et al. (US 20100072850 A1) is considered pertinent at least in teaching an axial motor having multiple stators and multiple rotors with a "a rotor middle housing that accommodates the rotor means located between the stator means." Blevins et al. (US 20180278133 A1) and Schuler et al. (US 2018/0212489 A1), and Carpenter (US 20110309726 A1) are considered pertinent at least in teaching an axial motor having multiple rotors and multiple stators, wherein the rotors arc inserted into the stators and are spaced using a spacer secured to the rotor (e.g. Blevins et al. Fig. 5, Schuler et al. Fig. 20A at 262). Lin et al. (US 20190101053 A1) is considered pertinent at least in teaching a modular axial motor having separate outer housing portions which are attachable/detachable to/from each other. Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. 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
Read full office action

Prosecution Timeline

Nov 14, 2023
Application Filed
Aug 27, 2025
Non-Final Rejection mailed — §112
Oct 16, 2025
Response Filed
Sep 23, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12749952
ELECTRIC MOTOR HAVING AN ANGLE SENSOR
2y 2m to grant Granted Sep 29, 2026
Patent 12749948
Electric Traction Machine for a Motor Vehicle
2y 1m to grant Granted Sep 29, 2026
Patent 12738824
ELECTRIC AXIAL FLUX MACHINE WITH PRETENSIONED STATOR COMPONENTS, AND ELECTRIC MACHINE ASSEMBLY COMPRISING SUCH AN ELECTRIC AXIAL FLUX MACHINE
2y 4m to grant Granted Sep 15, 2026
Patent 12732056
Enclosed Torque Controlled Electric Actuator and Method
4y 11m to grant Granted Sep 08, 2026
Patent 12732048
SYNCHRONOUS RELUCTANCE MOTOR HAVING A STATOR WITH STACKED LAMINATIONS AND A METHOD OF CONSTRUCTION
3y 1m to grant Granted Sep 08, 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
75%
Grant Probability
86%
With Interview (+11.5%)
2y 8m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1013 resolved cases by this examiner. Grant probability derived from career allowance rate.

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