Prosecution Insights
Last updated: July 17, 2026
Application No. 18/092,857

HYDROGEN PRODUCTION POWER SUPPLY SYSTEM

Non-Final OA §112
Filed
Jan 03, 2023
Priority
Jan 04, 2022 — CN 202210005822.3
Examiner
COHEN, BRIAN W
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Sungrow Power Supply Co., Ltd.
OA Round
3 (Non-Final)
54%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allowance Rate
348 granted / 640 resolved
-10.6% vs TC avg
Strong +48% interview lift
Without
With
+47.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
38 currently pending
Career history
669
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
89.9%
+49.9% vs TC avg
§102
3.7%
-36.3% vs TC avg
§112
2.0%
-38.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 640 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 5/7/2026 has been entered. Currently claims 1-2, 5-11, 14-17 and 20-26 are pending examination. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-2, 5-11, 14-17 and 20-26 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Applicant has amended claim 1 to recite: “the hydrogen production power supply system further comprises a controller, and wherein the controller is communicatively connected to the first state conversion module, the second stage conversion module, and each hydrogen production device, and the controller is configured to adjust electrical volumes of the output end of the first stage conversion module based on a voltage difference between hydrogen production devices.” Applicant states specifically that the language “controller is configured to adjust electrical volumes of the output end of the first stage conversion module based on a voltage difference between hydrogen production devices” is supported in particular in paragraphs [0048] and [0050] of the specification. [0048] supports the language that the controller is communicatively connected to the first state conversion module, the second stage conversion module, and each hydrogen production device. [0048] goes on to recite “the controller is configured to adjust electrical volumes of the output end of the first stage conversion module based on the input end information of the first stage conversion module and output information of the second state conversion module.” This language clearly does not support an adjustment based on a voltage difference between hydrogen production devices. [0050] recites “The controller can automatically adjust the output voltage, current or power of the first stage conversion module based on the status of the power supply side and the voltage difference of the hydrogen production device side and other conditions.” While this states the voltage difference of the hydrogen device side (meaning a singular hydrogen device can be adjusted in relation to itself), this does not support a voltage difference between hydrogen production devices. There is no explicit or implicit relation of comparing voltage differences between hydrogen production devices to adjust parameters of the first stage conversion module. Claims 1-2, 5-11, 14-17 and 20-26 are thus rejected as per 112(a) new matter. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRIAN W COHEN whose telephone number is (571)270-7961. The examiner can normally be reached M-F: 9 am to 5 pm EST. 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, Curtis Mayes can be reached at 571-272-1234. 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. BRIAN W. COHEN Primary Examiner Art Unit 1759 /BRIAN W COHEN/Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

Jan 03, 2023
Application Filed
Sep 12, 2025
Non-Final Rejection mailed — §112
Dec 05, 2025
Response Filed
Feb 09, 2026
Final Rejection mailed — §112
May 07, 2026
Request for Continued Examination
May 08, 2026
Response after Non-Final Action
Jul 07, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12680175
HYDROGEN-OXYGEN MIXTURE GAS PRODUCING AND SUPPLYING DEVICE
3y 6m to grant Granted Jul 14, 2026
Patent 12680181
A GEOTHERMAL HYDROGEN PRODUCTION SYSTEM
2y 11m to grant Granted Jul 14, 2026
Patent 12678733
CARBON DIOXIDE RECOVERY SYSTEM
3y 3m to grant Granted Jul 14, 2026
Patent 12678734
CARBON DIOXIDE RECOVERY SYSTEM
3y 0m to grant Granted Jul 14, 2026
Patent 12667899
REVOLVING CATHODE TOOL AND METHOD FOR CO-ROTATING ELECTROCHEMICAL MACHINING OF INNER WALL OF AERO-ENGINE CASING
2y 11m to grant Granted Jun 30, 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
54%
Grant Probability
99%
With Interview (+47.7%)
3y 3m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 640 resolved cases by this examiner. Grant probability derived from career allowance rate.

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