Prosecution Insights
Last updated: October 21, 2026
Application No. 19/126,467

POWER CONVERSION SYSTEM

Non-Final OA §102§103
Filed
May 01, 2025
Priority
Oct 06, 2023 — nonprovisional of PCTJP2023036545
Examiner
GBLENDE, JEFFREY A
Art Unit
2838
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
TMEIC Corporation
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
702 granted / 818 resolved
+17.8% vs TC avg
Moderate +9% lift
Without
With
+8.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
25 currently pending
Career history
842
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
54.9%
+14.9% vs TC avg
§102
18.7%
-21.3% vs TC avg
§112
22.9%
-17.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 818 resolved cases

Office Action

§102 §103
DETAILED ACTION This action is in response to the application filed on 5/1/2025. 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 . Specification The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-2 and 8 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Fu et al. (US Patent 9595862). Regarding claim 1, Fu et al. discloses (see fig. 2) a power conversion system comprising: a transformer (104) having a plurality of primary windings (N11-N13) and a secondary winding (N21-N23) mutually insulated and magnetically coupled (see winding connection) and configured to convert alternating current (AC) power to be supplied to each primary winding into polyphase AC power (operation of N11-N13 and N21-N23) and supply the polyphase AC power from the secondary winding to a load (N21-N23 output to 107); a power converter (102) configured to supply the AC power to each of the primary windings (output from 102 to N11-N13); and a filter circuit (106) connected to the secondary winding and configured to smooth the polyphase AC power (operation of 106). Regarding claim 2, Fu et al. discloses (see fig. 2) wherein the filter circuit includes a passive element (C3-C5) and serves as a capacitive load for the secondary winding (storage capabilities of C3-C5). Regarding claim 8, Fu et al. discloses (see fig. 2) a power conversion system comprising: a transformer (104) having first and second primary windings (N11-N13) and a secondary winding (N21-N23) mutually insulated and magnetically coupled (see winding connection) and configured to convert AC power to be supplied to the first and second primary windings into polyphase AC power (operation of N11-N13 and N21-N23) and supply the polyphase AC power from the secondary winding to a load (N21-N23 output to 107); a first power converter (202/204) connected to the first primary winding (connection to N11) and configured to supply first AC power to the first primary winding (output from 202/204 to N11); a second power converter (122) connected to the second primary winding (connection to N12) and configured to supply second AC power to the second primary winding (output from 122 to N12); and a filter circuit (106) connected to the secondary winding (connection to N21-N23) and configured to smooth the polyphase AC power (operation of 106). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Fu et al. (US Patent 9595862) in view of Siri (US Patent 7324361). Regarding claim 7, Fu et al. does not disclose that the filter circuit is provided between the secondary winding of the transformer and a distribution switch. Siri discloses (see fig. 26) that a filter circuit (output filter) is provided between a secondary winding of a transformer (see secondary winding of T1) and a distribution switch (output filter between winding and FUSE). Therefore it would have been obvious to one having ordinary skill in the art at the time the invention was filed to modify the system of Fu et al. to include the features of Siri because it’s used as means to reduce unwanted operations due to transient events, thus increasing operational efficiencies. Allowable Subject Matter Claims 3-6 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: Fu et al. (US 2017/0133947) discloses a multi-channel inverter system. Kobayashi et al. (US Patent 10700625) discloses a power conversion device. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JEFFREY A GBLENDE whose telephone number is (571)270-5472. The examiner can normally be reached M-F 9am-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, Monica Lewis can be reached at 571-272-1838. 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. /JEFFREY A GBLENDE/Primary Examiner, Art Unit 2838
Read full office action

Prosecution Timeline

May 01, 2025
Application Filed
Sep 30, 2026
Non-Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12771116
ELECTRONIC CIRCUIT BREAKER CONFIGURED TO PROVIDE A FAIL-SAFE MODE
2y 7m to grant Granted Oct 20, 2026
Patent 12771258
SYNCHRONOUS RECTIFIER CONTROL FOR SECONDARY SIDE TURN-ON PROTECTION
2y 6m to grant Granted Oct 20, 2026
Patent 12771231
DRIVING DEVICE, SWITCHING POWER SUPPLY DEVICE, AND ELECTRICAL APPLIANCE
2y 1m to grant Granted Oct 20, 2026
Patent 12763684
POWER CONVERSION SYSTEM FOR WIRELESS COMMUNICATION SYSTEMS
3y 7m to grant Granted Oct 13, 2026
Patent 12756298
POWER CONVERSION APPARATUS, CONTROL APPARATUS, AND SWITCH-MODE POWER SUPPLY
1y 11m to grant Granted Oct 06, 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
86%
Grant Probability
94%
With Interview (+8.6%)
2y 4m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 818 resolved cases by this examiner. Grant probability derived from career allowance rate.

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