Prosecution Insights
Last updated: April 19, 2026
Application No. 18/691,740

AC ROTARY MACHINE CONTROLLER, VEHICLE DRIVING APPARATUS, AND ELECTRIC POWER STEERING APPARATUS

Non-Final OA §112
Filed
Mar 13, 2024
Examiner
PAUL, ANTONY M
Art Unit
2846
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Mitsubishi Electric Corporation
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allow Rate
560 granted / 627 resolved
+21.3% vs TC avg
Moderate +10% lift
Without
With
+9.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
27 currently pending
Career history
654
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
33.7%
-6.3% vs TC avg
§102
44.4%
+4.4% vs TC avg
§112
17.9%
-22.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 627 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 . 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 1-18 are rejected to because of the following informalities: As to claim 1, the phrase, “a PWM controller that, for each set of m sets, generates pulse waves of n- phase by comparing each of the voltage command values of n-phase with a carrier wave signal oscillating at a PWM period, and turns on and off application of a DC voltage to a winding terminal of each phase by turning on and off switching devices of each phase of the inverter by each of the pulse waves of n-phase;” is unclear as to the application of dc voltage to the winding terminal (see para’s [0063]-[0064] of applicant’s specification, page 34) because an inverter 41/42 in general (fig.1) apply ac or alternating current voltage iu1-iw1/iu2-iw2 to winding terminal (i.e. convert dc voltage to ac voltage) of each phase of AC rotary machine 7 (see fig.1). Secondly, the phrase, “wherein, for each set of m sets, the voltage command-calculator calculates basic voltage command values of n-phase; and executes a flat-top two-phase modulation that calculates an offset voltage which makes the voltage command value of a phase of a maximum voltage in the voltage command values of n-phase coincide with a maximum value of the carrier wave signal, and calculates the voltage command values of n-phase by subtracting the offset voltage from the basic voltage command values of n-phase, or a flat- bottom two-phase modulation that calculates the offset voltage which makes the voltage command value of a phase of a minimum voltage in the voltage command values of n-phase coincide with a minimum value of the carrier wave signal, and calculates the voltage command values of n-phase by subtracting the offset voltage from the basic voltage command values of n- phase” is unclear as to subtracting the offset voltage from the basic voltage command values as applicants’ fig.5 shows (see fig.5, method steps S04, S08, para’s [0043] thru [0049] of applicant’s specification, pages 23-27) teaches dc voltage [Vdc] is subtracted from maximum voltage [Vmax1] to calculate the offset votlage Voff 1 (see equation (1)) Thirdly, essential elements of inventive steps are missing from claim 1 such as the determination of phase of maximum current absolute value of first set, determination of Vmax1, Vmin1 and Vmid1, phase of the maximum current absolute value = phase of Vmax1, phase of maximum current absolute value = phase of Vmin1 (see fig.5, steps S01, S02, S03, S05, S07, para’s [0040] thru [0049] of applicant’s specification, pages 22-27 and for second set, see fig.6, steps S11-S19, para’s [0051] thru [0056], pages 28-30 of specification). Appropriate corrections and explanation are required. Allowable Subject-Matter Claims 1-18 would be allowable if rewritten or amended 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. The following is a statement of reasons for the indication of allowable subject matter: As to claim 1, the prior art of record(s) (closest prior arts, MORI et al., Pub. No.: US 2018/0269771 A1, Suzuki US 2011/0221375 A1) fails to teach within the same PWM period, the PWM controller shifts one or both of paired the first comparison pulse wave and the second comparison pulse wave in an advance direction or a delay direction so that a rising timing of one of a potential of the winding terminal applied by the paired first comparison pulse wave and a potential of the winding terminal applied by the paired second comparison pulse wave coincides with a falling timing of the other. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANTONY M PAUL whose telephone number is (571)270-1608. The examiner can normally be reached M-F 8 am to 4 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, Mr. 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. /ANTONY M PAUL/ Primary Examiner of Art Unit 2846
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Prosecution Timeline

Mar 13, 2024
Application Filed
Dec 16, 2025
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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ELECTRIC DRIVE SYSTEM, POWERTRAIN, HEATING METHOD, AND ELECTRIC VEHICLE
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2y 5m to grant Granted Jan 27, 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
89%
Grant Probability
99%
With Interview (+9.7%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 627 resolved cases by this examiner. Grant probability derived from career allow rate.

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