F01K 25/005
The working fluid being steam, created by combustion of hydrogen with oxygen
Official title: {the working fluid being steam, created by combustion of hydrogen with oxygen}
F01K25/005 (The working fluid being steam, created by combustion of hydrogen with oxygen) appears on 94 US grants and 81 published applications in this corpus.
Search patents in F01K- Granted patents
- 94
- Published applications
- 81
- Assignees
- 43
- Inventors
- 185
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 2 |
| 2006 | 3 | 6 |
| 2007 | 1 | 2 |
| 2008 | 3 | 2 |
| 2009 | 1 | 7 |
| 2010 | 1 | 4 |
| 2011 | 0 | 3 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 3 |
| 2015 | 1 | 4 |
| 2016 | 0 | 2 |
| 2017 | 4 | 4 |
| 2018 | 1 | 2 |
| 2019 | 3 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 5 |
| 2022 | 2 | 6 |
| 2023 | 7 | 7 |
| 2024 | 2 | 5 |
| 2025 | 6 | 6 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Generating electrical energy from hydrogen and oxygen7 Apr 2026US 12,595,761 B2Siemens Energy Global GmbH & Co. KG
- Hydrogen-oxygen bubble steam boiler6 Jan 2026US 12,516,807 B2
- Systems and methods for oxy-combustion18 Nov 2025US 12,473,846 B2Schlumberger Technology Corporation
- Combined cycle power generation facility2 Sep 2025US 12,404,805 B2Kabushiki Kaisha Toshiba
- Hydrogen and oxygen supplemental firing for combined-cycle facility3 Jun 2025US 12,320,276 B2Mitsubishi Power Americas, Inc.
- Cryogenic fuel start up system5 Feb 2026US 2026/0036090 A1Rtx Corporation
- Electrolysis energy recovery29 Jan 2026US 2026/0028934 A1Rtx Corporation
- Hydrogen-oxygen bubble steam boiler12 Jun 2025US 2025/0189119 A1
- Combined cycle power generation facility15 May 2025US 2025/0154884 A1Kabushiki Kaisha Toshiba
- Steam turbine power generation facility using oxygen-hydrogen combustion24 Apr 2025US 2025/0129728 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Reduce pollution hydrocarbon combustion gas generator174US 5,709,077 AClean Energy Systems, Inc. · 1998
- Reduced pollution power generation system163US 5,715,673 AClean Energy Systems, Inc. · 1998
- Low pollution power generation system with ion transfer membrane air separation154US 6,945,029 B2Clean Energy Systems, Inc. · 2005
- Reduced pollution power generation system having multiple turbines and reheater121US 5,956,937 AClean Energy Systems, Inc. · 1999
- Clean air engines for transportation and other power applications116US 6,523,349 B2Clean Energy Systems, Inc. · 2003