Generating electrical energy from hydrogen and oxygen
US-12595761-B2 · Apr 7, 2026 · US
the working fluid being steam, created by combustion of hydrogen with oxygen
the working fluid being steam, created by combustion of hydrogen with oxygen · 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 | F01K25/005 |
| Official title | {the working fluid being steam, created by combustion of hydrogen with oxygen} |
| Display label | the working fluid being steam, created by combustion of hydrogen with oxygen |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 5 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cryogenic fuel start up system
US-2026036090-A1 · Feb 5, 2026 · US
Systems and methods for oxy-combustion
US-12473846-B2 · Nov 18, 2025 · US
Power-to-X system with an optimized hydrogen drying and purifying process
US-12322843-B2 · Jun 3, 2025 · US
Steam turbine power generation facility using oxygen-hydrogen combustion
US-2025129728-A1 · Apr 24, 2025 · US
System and method for gas turbine integrated hydrogen production with zero carbon dioxide emissions
US-12281600-B2 · Apr 22, 2025 · US
System and method for gas turbine integrated hydrogen production with zero carbon dioxide emissions
US-2025101888-A1 · Mar 27, 2025 · US
Installation with instantaneous steam generator
US-2025043717-A1 · Feb 6, 2025 · US
Hydrogen-oxygen fueled powerplant with water and heat recovery
US-12215608-B2 · Feb 4, 2025 · US
Hydrogen-fired combustion chamber system, method and plant
US-2024318818-A1 · Sep 26, 2024 · US
Systems and methods for oxy-combustion
US-2024240339-A1 · Jul 18, 2024 · US
Generating electrical energy from hydrogen and oxygen
US-2024200472-A1 · Jun 20, 2024 · US
On-demand hydrogen for power generation
US-2024159170-A1 · May 16, 2024 · US
System having a combustion power plant and an electrolysis unit, and method for operating a system of this type
US-11867092-B2 · Jan 9, 2024 · US
Hydrogen-oxygen fueled powerplant with water and heat recovery
US-2023392524-A1 · Dec 7, 2023 · US
Hydrogen-oxygen fueled powerplant with water and heat recovery
US-11828200-B2 · Nov 28, 2023 · US
System and method for hydrogen production using a control unit controlling an adjustment device
US-11802344-B2 · Oct 31, 2023 · US
Hydrogen-oxygen fueled powerplant with water and heat recovery
US-2023258106-A1 · Aug 17, 2023 · US
Hydrogen-oxygen fueled powerplant with water and heat recovery
US-2023258126-A1 · Aug 17, 2023 · US
System having a combustion power plant and an electrolysis unit, and method for operating a system of this type
US-2023112330-A1 · Apr 13, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01K25/005?
- CPC F01K25/005 is the Cooperative Patent Classification code for “the working fluid being steam, created by combustion of hydrogen with oxygen.”
- How many patents are filed under CPC F01K25/005 (the working fluid being steam, created by combustion of hydrogen with oxygen)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC F01K25/005 growing?
- Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).