Prosecution Insights
Last updated: April 19, 2026
Application No. 18/122,422

PROPANE FUELED MOBILE/PORTABLE HIGH-CAPACITY EV CHARGING STATIONS

Non-Final OA §103§112
Filed
Mar 16, 2023
Examiner
PACHECO, ALEXIS BOATENG
Art Unit
2859
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Pioneer Power Solutions Inc.
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
91%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
767 granted / 983 resolved
+10.0% vs TC avg
Moderate +13% lift
Without
With
+12.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
53 currently pending
Career history
1036
Total Applications
across all art units

Statute-Specific Performance

§101
3.7%
-36.3% vs TC avg
§103
55.3%
+15.3% vs TC avg
§102
25.4%
-14.6% vs TC avg
§112
5.6%
-34.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 983 resolved cases

Office Action

§103 §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 1-11 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Regarding claim 1, the following limitations render the claim indefinite: “a plurality of propane tanks for generating power” – unclear how tanks themselves generate power vs supplying power to the generator “a plurality of solar panels for charging onboard batteries due to parasitic loads” – unclear relationship of “due to parasitic loads” because claim does not provide sufficient structure or context to clarify the intended relationship. Suggested correction: “a plurality of solar panels with an onboard battery for parasitic loads” as disclosed in the applicant’s specification [0082] Regarding claim 3, the following limitations render the claim indefinite: “software architecture capable of…” “detecting where the charging system is at all times” “processing advanced data analytics to improve performance” These are purely functional results with no structural limitations. Regarding claim 4, the following limitations render the claim indefinite: “augment computer vision using machine learning and AI” – unclear scope of “augment” and no defined structure or algorithm. Regarding claim 5, the following limitations render the claim indefinite: The limitation, “which combines all of the necessary onboard electronics, advanced sensors, communication gateway, redundant data portals with cloud connectivity…renewal solar energy and storage system.” There is insufficient antecedent basis for these limitations in the claim. “renewal solar energy” – unclear term, perhaps a typo for “renewable” Regarding claim 6, the following limitations render the claim indefinite: “accurately and reliably manages, monitors” - terms of degree with no objective boundaries “automatically alert the nearest propane provider” – indefinite, as unclear how “nearest” is determined. Regarding claim 7, the following limitations render the claim indefinite: “parasitic power source” – unclear structure Regarding claim 8, the following limitations render the claim indefinite: “networks onboard camera system” – unclear as a verb (what structure performs networking is unclear) Regarding claim 9, the following limitations render the claim indefinite: “all data is securely uploaded in a cloud server” – intended result and unclear structure. Lacks antecedent basis, because it is unclear which “data” is securely uploaded. Claim Rejections - 35 USC § 103 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. Claims 1 – 3, 5, 6, 8 and 11 are rejected under 35 U.S.C. 103 as being unpatentable over Stumpf (US 20240300351) in view of Casteel (US 20140285005) and in further view of Smith (US 20210376634). Regarding claim 1, Stumpf teaches a charging system for a mobile and portable high-capacity Electrical Vehicle (EV) charging station (figure 1 item 100 a mobile charging platform configured to charge electric vehicles), comprising: a plurality of tanks for generating power (figure 2 item 30 a tank for providing fuel to an onboard generator item 4) ; a generator (figure 2 item 4 a generator); an EV charger (shown in figure 2 item 9 defined in paragraph [0102] as a power harvester which charges electric vehicles); a plurality of solar panels for charging onboard batteries due to parasitic loads (figure 2 item 10 defined in paragraph [0096] as photovoltaic solar panels which provide charge to battery bank item 5); a communication backhaul (paragraph [0137] discloses a communication network item 70) ; a diagnostics and monitoring device for monitoring the plurality of tanks, the generator, and the EV charger (Paragraphs [0129] teaches wherein different sensor detect different aspects of the devices on the platform. Paragraphs [0142] – [0144] teaches wherein server 80 includes a monitoring the status of the devices on the platform). Stumpf does not explicitly teach or suggest propane tanks on the mobile charging platform. Casteel teaches a system with propane tanks (figure 3 item 72) provided to an onboard generator stored on board a mobile platform (figure 3 item 66 a generator. Paragraph [0046] teaches wherein generator uses propane and the propane is stored in the tanks onboard). a security device (defined in paragraph [0059] wherein a plurality of security devices such as cameras, motion sensors or infrared lights). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf reference with the charging system of the Casteel reference so that a generator maximize overall efficiency and extend battery service life. The suggestion/motivation for combination can be found in the Casteel reference in paragraph [0047] the generator maximizes overall efficiency and extend battery service life. Stumpf and Casteel do not explicitly teach or suggest a voltage selector switch. Smith teaches a voltage selector switch (figure 1D item 116 and defined in paragraph [0042] teaches a voltage selector switch item 116). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf and Casteel references with the charging system of the Smith reference so that the user may easily switch between desired power outputs. The suggestion/motivation for combination can be found in the Smith reference in paragraph [0042] wherein the switching to desired power outputs is taught. PNG media_image1.png 286 570 media_image1.png Greyscale Stumpf figure 4 shows a mobile transportable charging platform PNG media_image2.png 491 498 media_image2.png Greyscale Casteel figure 3 show a mobile transportable charging platform with propane tanks on board item 72 PNG media_image3.png 792 573 media_image3.png Greyscale Smith Figure 1D shows a voltage selector switch item 116 in mobile charging device item 100. Regarding claim 2, Stumpf teaches the charging system according to claim 1, wherein the charging system is configured to be used in a plurality of platforms, the plurality of platforms comprising: a skid; a truck; a trailer. (paragraph [0094] discloses wherein the mobile platform may be pulled by a vehicle such as a trailer, and includes a skid. Figure 4 shows a trailer). Stumpf and Casteel do not explicitly teach wherein the platform includes a pod. Smith teaches wherein the platform includes a pod (shown in figure 1B shows a pod defined in paragraph [0037] as a housing). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf and Casteel references with the housing system of the Smith reference so that the devices within the system are protected by the elements outdoors. The suggestion/motivation for combination can be found in the Smith reference in paragraph [0037] wherein the housing is taught to provide external protection to the system. Regarding claim 3, Stumpf teaches the charging system according to claim 1, wherein the charging system further comprises a software architecture capable of detecting where the charging system is at all times, diagnosing the charging system remotely, and processing advanced data analytics to improve performance (paragraph [0139] teaches a remote server item 80 oversees the mobile platforms. Paragraphs [0141]-[0142] teaches wherein the server detects the location of the charging platforms and diagnoses or determines issues which may require replacement or removal to improve performance). Regarding claim 5, Stumpf teaches the charging system according to claim 1, wherein the charging system further comprises an onboard data system through a NERD (Networked Electronic Resources Distribution) Box, which combines all of the necessary onboard electronics, advanced sensors, communication gateway, redundant data portals with cloud connectivity that is kept powered 24/7 through renewal solar energy and energy storage system, wherein the onboard electronics connect all of the major systems within the charging system and ensures reliable communication between the plurality of propane tanks, the generator, the EV charger, the plurality of solar panels, the security device, and the diagnostics and monitoring device (figure 7 and paragraphs [0124] – [0125] shows a NERD box, interpreted as a mechanical cabinet which houses major communication systems such as the control unit to monitor various data within the system). Regarding claim 6, Stumpf teaches the charging system according to claim 5, wherein the advanced sensors comprise an ultrasonic propane tank level sensor that is noncontact, non-intrusive, accurately and reliably manages, monitors the level of propane fuel on board and is integrated with cloud connectivity, to automatically alert the nearest propane provider to ensure reliable delivery and refill the plurality of propane tanks (paragraph [0113] and [0129]-[0130] teaches sensors item 67 which detect real time levels of the fuel in the onboard tanks. Paragraph [0142] teaches wherein this information is integrated with a server to automatically manage the fuel). Stumpf does not explicitly teach propane fuel within the tanks. Casteel teaches a system with propane tanks (figure 3 item 72) provided to an onboard generator stored on board a mobile platform (figure 3 item 66 a generator. Paragraph [0046] teaches wherein generator uses propane and the propane is stored in the tanks onboard). a security device (defined in paragraph [0059] wherein a plurality of security devices such as cameras, motion sensors or infrared lights). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf reference with the charging system of the Casteel reference so that a generator maximize overall efficiency and extend battery service life. The suggestion/motivation for combination can be found in the Casteel reference in paragraph [0047] the generator maximizes overall efficiency and extend battery service life. Regarding claim 8, Stumpf teaches the charging system according to claim 5, but does not explicitly teach wherein the NERD Box networks onboard camera system and safety lighting systems for security protection. Casteel teaches wherein the NERD Box networks onboard camera system and safety lighting systems for security protection. (defined in paragraph [0059] wherein a plurality of security devices such as cameras, motion sensors or infrared lights). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf reference with the charging system of the Casteel reference so that a generator maximizes overall efficiency and extend battery service life. The suggestion/motivation for combination can be found in the Casteel reference in paragraph [0047] the generator maximizes overall efficiency and extend battery service life. Regarding claim 11, Stumpf teaches the charging system according to claim 1, wherein the charging system is further extended to a multiple-way charging station, in which a plurality of EVs are charged simultaneously (paragraph [0095] teaches wherein multiple charge terminals provide for simultaneously charging multiple vehicles 200). Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over Stumpf (US 20240300351) in view of Casteel (US 20140285005) and in further view of Smith (US 20210376634) and in further view of Silva (US 20200409325). Regarding claim 4, Stumpf, Casteel, and Smith teaches the charging system according to claim 3, but does not explicitly teach wherein the software architecture is built with the ability to augment computer vision using machine learning and Al (Artificial Intelligence). Silva teaches wherein the software architecture is built with the ability to augment computer vision using machine learning and Al (Artificial Intelligence) (defined in paragraph [0070] wherein machine learning and Al (Artificial Intelligence) software architecture to predict various data on a mobile platform charging). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf, Casteel, and Smith references with the software architecture system of the Silva reference so that the user or operator may easily understand when the system is operating in specific mode without having to determine the state of the system by manually analyzing the devices on board the mobile charging platform. The suggestion/motivation for combination can be found in the Silva reference in paragraph [0076] wherein the user is easily able to understand the specific modes of operation. PNG media_image4.png 230 494 media_image4.png Greyscale Silva Figure 2 shows mobile charging station which uses machine learning and Artificial Intelligence to predict data on charging 5. Claim 7 is rejected under 35 U.S.C. 103 as being unpatentable over Stumpf (US 20240300351) in view of Casteel (US 20140285005) and in further view of Smith (US 20210376634) as applied to claim 1 and in further view of Spangler (US 8185762). Regarding claim 7, Stumpf teaches the charging system according to claim 1, teaches a user interface screen of the EV charger (shown in figure 9 item 64 defined in paragraphs [0128]-[0129] as a user interface powered by a power source which includes power harvested from the generator). Stumpf, Casteel, and Smith do not explicitly teach wherein even when a generator power is off, is active through an onboard parasitic power source and an electronic circuitry design. Spangler teaches wherein even when a generator power is off, a user interface screen of the EV charger is active through an onboard parasitic power source and an electronic circuitry design (column 6 lines 12 – 29 teaches a system wherein a user interface screen, such as a display device may be powered parasitic energy when a power source, such as when a generator is off. Parasitic power is known in the art to generated from a power source when a power source is powered off). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf, Casteel, and Smith reference with the low power display system of the Spangler reference so that costly infrastructure updates are avoided. The suggestion/motivation for combination can be found in the Spangler reference in column 2 lines 26 - 29 wherein costly infrastructure updates can be avoided. 6. Claim 9 rejected under 35 U.S.C. 103 as being unpatentable over Stumpf (US 20240300351) in view of Casteel (US 20140285005) and in further view of Smith (US 20210376634) as applied to claim 1 and in further view of Hall (US 20170363432). Regarding claim 9, Stumpf teaches the charging system according to claim 1, wherein all data is securely uploaded in a server (paragraph [0130]-[0131] teaches storing data on a remote server). Stumpf, Casteel, and Smith do not explicitly teach a cloud server. Hall teaches wherein data is securely uploaded in a cloud server (paragraph [0029] teaches wherein data is stored securely in a cloud-based server). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf, Casteel, and Smith reference with the cloud server system of the Hall reference so that vehicle refueling locations are more easily predicted and an optimized refueling path may be created. The suggestion/motivation for combination can be found in the Hall reference in the Abstract wherein predicting refueling locations and optimizing a refueling path is taught. PNG media_image5.png 439 590 media_image5.png Greyscale Hall Figure 1 shows a mobile fuel station which uses a cloud server to securely store data 7. Claim 10 is rejected under 35 U.S.C. 103 as being unpatentable over Stumpf (US 20240300351) in view of Casteel (US 20140285005) and in further view of Smith (US 20210376634) as applied to claim 1 and in further view of Fisher (US 20230081083) Regarding claim 10, Stumpf, Casteel and Smith teach the charging system according to claim 1, but does not explicitly teach wherein the charging system is configured to use either rLPG (renewable Liquid Petroleum Gas) or rDME (renewable Dimethyl Ether) for energy source. Fisher teaches wherein the charging system is configured to use either rLPG (renewable Liquid Petroleum Gas) or rDME (renewable Dimethyl Ether) for energy source (defined in paragraph [0109] wherein an rLPG (renewable Liquid Petroleum Gas) or rDME (renewable Dimethyl Ether) for energy source is used, interpreted as a biofuel). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the charging system of the Stumpf, Casteel, and Smith reference with the renewable energy source of the Fisher reference so that a plurality of batteries may be charged when wind and solar power in unavailable. The suggestion/motivation for combination can be found in the Fisher reference paragraph [0096] wherein a plurality of harvesting devices may be used to recharge batteries for charging vehicles. PNG media_image6.png 284 445 media_image6.png Greyscale Fisher Figure 3 shows a mobile charging station which uses a variety of renewable energy sources including biofuels Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 20240416781 A1 Mobile Vehicles Charging System Alotaibi; Mutlaq Senhat Z. US 20180358919 A1 Transportable Hybrid Power System Ansari; Reza US 20160264035 A1 Mobile Service Unit Brand; David Paul US 20100065344 A1 Self Propelled Vehicle Recharging Trailer Collings, Iii; John K. US 20230006457 A1 Modular Charging System Corley; Clifford Brian Et Al. US 20170327091 A1 Charging Power Sources Vehicles Capizzo; Peter D. US 20240424933 A1 Cart System Cristache; Lucian US 20170282736 A1 Managing A Network Of Charging Stations Goei; Esmond US 20190351783 A1 Mobile Electric Vehicle Charging Station System Goei; Esmond US 20180264955 A1 Fast Charging Of Electric Vehicle Gupta; Ranjan Kumar US 20120271758 A1 Recharging Electric Vehicles In Transit Jammer; Daniel US 10737583 B2 Mobile Variable Power System Johnsen; Stephen G. Et Al. US 20230256848 A1 Renewable Energy EV Charging Jorgenson; Joel A. Et Al. US 20140116870 A1 Resource Distribution System Kamen; Dean Et Al. US 20220127969 A1 Gas Turbine Propulsion System O'neill; Francis Et Al. US 20120299531 A1 Mobile Charging Service Vehicles Prosser; Ronald D. Et Al. US 20190135125 A1 Mobile Energy Storage Device Sponheimer; Arnulf Et Al. US 10389121 B1 Efficient Portable Power Generator System Sherry; Raymond C. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEXIS B PACHECO whose telephone number is (571)272-5979. The examiner can normally be reached M-F 9:00 - 5:30. 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, Julian Huffman can be reached at 571-272-2147. 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. ALEXIS BOATENG PACHECO Primary Examiner Art Unit 2859 /ALEXIS B PACHECO/Primary Examiner, Art Unit 2859
Read full office action

Prosecution Timeline

Mar 16, 2023
Application Filed
Mar 04, 2026
Non-Final Rejection — §103, §112 (current)

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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
78%
Grant Probability
91%
With Interview (+12.9%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 983 resolved cases by this examiner. Grant probability derived from career allow rate.

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