Process for generating clean power and hydrogen
US-12428296-B1 · Sep 30, 2025 · US
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of open-cycle type
of open-cycle type · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02G1/02 |
| Official title | of open-cycle type |
| Display label | of open-cycle type |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling an internal combustion engine system
US-11143119-B2 · Oct 12, 2021 · US
A method for controlling an internal combustion engine system
US-2020232397-A1 · Jul 23, 2020 · US
Internal combustion engine system
US-10704447-B2 · Jul 7, 2020 · US
Scissor type compression and expansion machine used in a thermal energy recuperation system
US-10598050-B2 · Mar 24, 2020 · US
Double-acting pressure reducing cylinder with adaptive support
US-10415500-B2 · Sep 17, 2019 · US
An internal combustion engine system
US-2018363535-A1 · Dec 20, 2018 · US
Heat engine of transfer-expansion and regeneration type
US-9982626-B2 · May 29, 2018 · US
Scissor type compression and expansion machine used in a thermal energy recuperation system
US-2018030858-A1 · Feb 1, 2018 · US
Heat/acoustic wave conversion unit
US-9759157-B2 · Sep 12, 2017 · US
Cylindre detendeur a double effet a support adaptatif
US-2017074295-A1 · Mar 16, 2017 · US
Heat engine of transfer-expansion and regeneration type
US-2016252048-A1 · Sep 1, 2016 · US
Systems, methods, and apparatuses related to the use of gas clathrates
US-9416702-B2 · Aug 16, 2016 · US
Gerotor apparatus for a quasi-isothermal Brayton cycle engine
US-9382872-B2 · Jul 5, 2016 · US
Heat/acoustic wave conversion unit
US-2016084198-A1 · Mar 24, 2016 · US
Heat engine
US-9046055-B2 · Jun 2, 2015 · US