Prosecution Insights
Last updated: April 19, 2026
Application No. 18/692,671

Method for Controlling a Three-Phase Electric Machine and Control Unit and System Thereof

Non-Final OA §112
Filed
Mar 15, 2024
Examiner
LUO, DAVID S
Art Unit
2846
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Politecnico Di Torino
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
97%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
1007 granted / 1115 resolved
+22.3% vs TC avg
Moderate +6% lift
Without
With
+6.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
27 currently pending
Career history
1142
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
46.4%
+6.4% vs TC avg
§102
48.7%
+8.7% vs TC avg
§112
2.8%
-37.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1115 resolved cases

Office Action

§112
DETAILED ACTION 1. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 2. The specification, the abstract and the drawings are all acceptable. 3. Examiner Interview: The Examiner and Applicant’s attorney had a telephone interview regarding the proposed 35 USC 112(f) rejection on 11/24/2025. See details in the attached Examiner Interview Summary. Claim Rejections - 35 USC § 112 4. The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. 5. Claims 1-9 are rejected under 35 U.S.C. 112(f), as being not to recite a definite structure, material or act that entirely performs the recited function. As to claim 1, the placeholder “means” is used in several limitations such as “by means of a control unit”, “control means” and “sensor means” which do not to recite a definite structure, material or act that entirely performs the recited function. Also, in the specification, the “control means” and “sensor means” are not further detailed to recite a definite structure, material or act that entirely performs the recited function. They are simply a regular controller/control unit and sensor which are not detailed to recite a definite structure, material or act that entirely performs the recited function. As to claims 2-4 and 9, they are rejected as they are dependent on the indefinite claim 1. As to claim 5, the placeholder “means” is used in several limitations such as “control means” and “sensor means” which do not to recite a definite structure, material or act that entirely performs the recited function. Also, in the specification, the “control means” and “sensor means” are not further detailed to recite a definite structure, material or act that entirely performs the recited function. They are simply a regular controller/control unit and sensor which are not detailed to recite a definite structure, material or act that entirely performs the recited function. As to claims 6-8, they are rejected as they are dependent on the indefinite claim 5. Claim Rejections - 35 USC § 112 6. The following is a quotation of 35 U.S.C. 112(b):: 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. 7. Claims 1-9 are rejected under 35 U.S.C. 112(b), as being indefinite for failing to particularly point out and distinctly claim the subject matter which applicant regards as the invention. As to claim 1, the placeholder “means” is used in several limitations such as “by means of a control unit”, “control means” and “sensor means” which do not to recite a definite structure, material or act that entirely performs the recited function. Also, in the specification, the “control means” and “sensor means” are not further detailed to recite a definite structure, material or act that entirely performs the recited function. They are simply a regular controller/control unit and sensor which are not detailed to recite a definite structure, material or act that entirely performs the recited function. Thus, claim 1 is indefinite. As to claims 2-4 and 9, they are rejected as they are dependent on the indefinite claim 1. As to claim 5, it is rejected as the same reason as claim 1. As to claims 6-8, they are rejected as they depend on the indefinite claim 5. Conclusion 8. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. USPN 7,489,099 to Fujiwara discloses a motor control system. 9. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DAVID S LUO whose telephone number is (571)270-5251. The examiner can normally be reached 8AM-5PM. 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. /DAVID LUO/Primary Examiner, Art Unit 2846
Read full office action

Prosecution Timeline

Mar 15, 2024
Application Filed
Nov 24, 2025
Examiner Interview (Telephonic)
Nov 26, 2025
Non-Final Rejection — §112 (current)

Precedent Cases

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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
90%
Grant Probability
97%
With Interview (+6.5%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 1115 resolved cases by this examiner. Grant probability derived from career allow rate.

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