Prosecution Insights
Last updated: April 18, 2026
Application No. 18/176,650

INDUCTION ELECTRIC MOTOR WITH FLUX INJECTION IN MULTIPLE REFERENCE FRAMES

Final Rejection §101
Filed
Mar 01, 2023
Examiner
LAUGHLIN, CHARLES S
Art Unit
2846
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
GM Global Technology Operations LLC
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
3y 2m
To Grant
86%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
284 granted / 372 resolved
+8.3% vs TC avg
Moderate +10% lift
Without
With
+10.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
42 currently pending
Career history
414
Total Applications
across all art units

Statute-Specific Performance

§101
2.5%
-37.5% vs TC avg
§103
52.0%
+12.0% vs TC avg
§102
33.7%
-6.3% vs TC avg
§112
10.2%
-29.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 372 resolved cases

Office Action

§101
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 § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-4, 6-10, 13, 15-18, and 20 are rejected under 35 U.S.C. 101 because the claimed invention is directed to an abstract idea without significantly more. The claim(s) recite(s) using a controller to inject flux harmonics in a plurality of reference frames and calculating various parameters such as obtaining an angular position in a rotor reference frame and a flux reference frames. This judicial exception is not integrated into a practical application because the claim only recites a controller which is in communication with the electric motor to calculate these parameters which is a generic computer running an algorithm which is an abstract idea. . The claim(s) does/do not include additional elements that are sufficient to amount to significantly more than the judicial exception because the claims do not integrate the abstract idea of an algorithm running on a generic computer into running or controlling a motor in a physical sense. There is no mention of hardware other than a generic controller which could not run a motor in itself. For example, although physical elements of the invention are present in ¶0020 of the specification, there is no mention in the claims of hardware elements that could actually drive a motor such as a DC power source, an inverter, etc. Response to Arguments Regarding applicant’s arguments pertaining to claims 1-4, 6-10, 13, 15-18, and 20, although the claims would be allowable over the prior art of reference, they have 101 issues that would not make them subject matter eligible and directed to one of the four statutory categories. As such, the claims have been rejected under 35 U.S.C. 101 above. Conclusion 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 CHARLES S LAUGHLIN whose telephone number is (571)270-7244. The examiner can normally be reached Monday - Friday. 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, Eduardo Colon-Santana can be reached at (571) 272-2060. 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. /C.S.L./ Examiner, Art Unit 2846 /KAWING CHAN/Primary Examiner, Art Unit 2846
Read full office action

Prosecution Timeline

Mar 01, 2023
Application Filed
Oct 18, 2025
Non-Final Rejection — §101
Jan 21, 2026
Response Filed
Mar 28, 2026
Final Rejection — §101 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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A SYSTEM AND METHOD FOR PROVIDING N BIPOLAR AC PHASE VOLTAGES
2y 5m to grant Granted Apr 07, 2026
Patent 12587115
DRIVING CIRCUIT FOR MOTOR SYSTEMS AND CONTROL METHOD THEREOF
2y 5m to grant Granted Mar 24, 2026
Patent 12587005
CONTROLLER FOR AN ELECTRICAL POWER SUPPLY CIRCUIT OF A SUPERCONDUCTING MOTOR, SUPERCONDUCTING ELECTRICAL POWER SUPPLY SYSTEM FOR A MOTOR, AND AIRCRAFT COMPRISING SUCH A SYSTEM
2y 5m to grant Granted Mar 24, 2026
Patent 12562667
STARTER-GENERATOR CONTROL UNIT (SGCU) RANDOMIZED CURRENT FEEDBACK CONTROL
2y 5m to grant Granted Feb 24, 2026
Patent 12556120
ROLLABLE ELECTRONIC DEVICE INCLUDING GEAR ASSEMBLY
2y 5m to grant Granted Feb 17, 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
76%
Grant Probability
86%
With Interview (+10.1%)
3y 2m
Median Time to Grant
Moderate
PTA Risk
Based on 372 resolved cases by this examiner. Grant probability derived from career allow rate.

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