Prosecution Insights
Last updated: April 19, 2026
Application No. 18/859,120

INTERNAL COMBUSTION ENGINE SYSTEM, VEHICLE INCLUDING SAME, AND METHOD OF SUPPLYING FUEL GAS

Non-Final OA §102
Filed
Oct 22, 2024
Examiner
HASAN, SYED O
Art Unit
3747
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Kawasaki Motors Ltd.
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
2y 2m
To Grant
97%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
537 granted / 687 resolved
+8.2% vs TC avg
Strong +19% interview lift
Without
With
+18.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
31 currently pending
Career history
718
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
51.8%
+11.8% vs TC avg
§102
30.6%
-9.4% vs TC avg
§112
13.6%
-26.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 687 resolved cases

Office Action

§102
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 § 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-12 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Singh (WO 2022/266769), hereinafter “Singh”. Regarding claim 1, Singh discloses an internal combustion engine system comprising: an internal combustion engine (140);at least one fuel tank (25) that stores a fuel gas in a compressed state (paragraph 36); a fuel gas pipe (57) that connects the fuel tank to the internal combustion engine (paragraph 70); and a pressurizing pump (70) that pressurizes the fuel gas in the fuel tank or in the fuel gas pipe (paragraph 39, shown in figure 10). Regarding claim 2, Singh discloses the internal combustion engine system according to claim 1, further comprising a pressure reducing valve (120) that is located at the fuel gas pipe (57) and reduces pressure of the fuel gas to a predetermined value or less (paragraph 41), wherein the pressurizing pump (70) pressurizes the fuel gas located upstream of the pressure reducing valve (120, shown in figure 10). Regarding claim 3, Singh discloses the internal combustion engine system according to claim 1, wherein the pressurizing pump (70) is driven by utilizing energy generated by the internal combustion engine (paragraph 40). Regarding claim 4, Singh discloses the internal combustion engine system according to claim 3, wherein the pressurizing pump (70) is mechanically driven by the internal combustion engine (paragraph 40). Regarding claim 5, Singh discloses the internal combustion engine system according to claim 1, further comprising an accumulator (100, paragraph 39) connected to the fuel gas pipe (57). Regarding claim 6, Singh discloses the internal combustion engine system according to claim 1, wherein the fuel gas pipe (57) includes an internal combustion engine channel (25 to 57 to 92 to 122 to 100 and then on to 140) extending from the fuel tank (25) toward the internal combustion engine and a pump channel (25 to 57 to 82 to 70 and then on to 140) extending from the fuel tank to the pressurizing pump (70),the internal combustion engine system further comprising: a valve system (valve system includes 40, 50, 82, 92, and 110) that is operatable in a state where the fuel tank communicates with the internal combustion engine channel or a state where the fuel tank communicates with the pump channel; and processing circuitry configured to control the valve system (paragraph 70). Regarding claim 7, Singh discloses the internal combustion engine system according to claim 6, wherein: the at least one fuel tank includes a first fuel tank (25) and a second fuel tank (35); the processing circuitry determines which of internal pressure of the first fuel tank and internal pressure of the second fuel tank is lower; and the processing circuitry controls the valve system such that the fuel gas in one of the first fuel tank and the second fuel tank which is lower in the internal pressure is guided to the pressurizing pump (paragraphs 37 and 43). Regarding claim 8, Singh discloses the internal combustion engine system according to claim 6, wherein: the processing circuitry determines whether or not internal pressure of the fuel tank is less than a predetermined lower limit value; the processing circuitry controls the valve system such that the fuel gas of the fuel tank having the internal pressure that is less than the predetermined lower limit value is guided to the pressurizing pump (paragraphs 37 and 43). Regarding claim 9, Singh discloses the internal combustion engine system according to claim 1, wherein the fuel gas includes a hydrogen gas (paragraph 11). Regarding claim 10, Singh discloses a vehicle comprising the internal combustion engine system according to claim 1, wherein the vehicle moves by driving power generated by the internal combustion engine system (paragraph 61). Regarding claim 11, Singh discloses the vehicle according to claim 10, wherein: the internal combustion engine system further includes a valve system that switches channels among the fuel tank, the pressurizing pump, and the fuel gas pipe and first processing circuitry configured to control the valve system (paragraph 43); the vehicle further includes second processing circuitry configured to control equipment different from the valve system; and the first processing circuitry and the second processing circuitry are connected to each other so as to perform information communication therebetween (paragraph 44). Examiner note that the controller is also an engine controller that controls the fuel command and the engine operating commands with parallel algorithms. Regarding claim 12, Singh discloses a method of supplying a fuel gas, the method comprising: supplying to a fuel gas consuming source the fuel gas of one of two channels which is higher in pressure; pressurizing by a pressurizing pump the fuel gas of one of the two channels which is lower in pressure (paragraph 43); and supplying the pressurized fuel gas to the fuel gas consuming source (paragraph 43). Examiner notes that the controller (150) pressurizes the gas when the pressure in the fuel tanks are lower than a threshold. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Refer to PTO-892. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SYED O HASAN whose telephone number is (571)272-0990. The examiner can normally be reached Monday-Friday; 11AM-7PM. 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, Lindsay Low can be reached at (571) 272-1196. 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. /SYED O HASAN/ Primary Examiner, Art Unit 3747 1/7/2026
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Prosecution Timeline

Oct 22, 2024
Application Filed
Jan 07, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 5m to grant Granted Apr 14, 2026
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2y 5m to grant Granted Mar 17, 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
78%
Grant Probability
97%
With Interview (+18.9%)
2y 2m
Median Time to Grant
Low
PTA Risk
Based on 687 resolved cases by this examiner. Grant probability derived from career allow rate.

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