F02C 5/12
The combustion chambers having inlet or outlet valves
Official title: the combustion chambers having inlet or outlet valves, e.g. Holzwarth gas-turbine plants
F02C5/12 (The combustion chambers having inlet or outlet valves) appears on 75 US grants and 85 published applications in this corpus.
Search patents in F02C- Granted patents
- 75
- Published applications
- 85
- Assignees
- 23
- Inventors
- 122
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 3 |
| 2003 | 3 | 2 |
| 2004 | 1 | 5 |
| 2005 | 1 | 2 |
| 2006 | 4 | 4 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 3 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 2 |
| 2013 | 2 | 3 |
| 2014 | 0 | 2 |
| 2015 | 5 | 8 |
| 2016 | 2 | 3 |
| 2017 | 2 | 6 |
| 2018 | 3 | 11 |
| 2019 | 6 | 4 |
| 2020 | 4 | 9 |
| 2021 | 8 | 2 |
| 2022 | 4 | 6 |
| 2023 | 3 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combustion engine including turbomachine16 Jun 2026US 12,655,792 B2GE Aviation Systems LLC
- Rotating internal combustion engine26 Aug 2025US 12,398,670 B2Green Engine, LLC
- Method of controlling deflagration combustion process in pistonless combustor4 Mar 2025US 12,241,407 B2Finno Exergy Oy
- Constant volume turbomachine combustion chamber24 Dec 2024US 12,173,646 B2Safran Aircraft Engines
- Constant-volume combustion system with synchronized injection17 Dec 2024US 12,168,955 B2Safran
- Method of operating a rotating detonation combustor6 Aug 2026US 2026/0227070 A1General Electric Company
- Rotating internal combustion engine16 Apr 2026US 2026/0104006 A1Green Engine, LLC
- Gas Turbine System23 Oct 2025US 2025/0327419 A1
- Method of controlling deflagration combustion process in pistonless combustor5 Jun 2025US 2025/0179959 A1Finno Exergy Oy
- Turbine driven by confrontation of explosions of oxygen and hydrogen, or any hydrogenated hydrocarbon, under pressure and vacuum by aqueous precipitation of the resulting water vapor1 May 2025US 2025/0137402 A1
Most cited
By later US patents
- Partitioned multi-channel combustor34US 6,526,936 B2Advanced Research and Technology Institute, Inc. · 2003
- Constant volume combustion turbine with plurality flow turbine wheels33US 5,960,625 A1999
- Rotary valve for pulse detonation engines29US 6,505,462 B2General Electric Company · 2003
- Continuous detonation combustion engine and system29US 9,512,805 B2Rolls-Royce North American Technologies Inc. · 2016
- Power plant having a U-shaped combustion chamber with first and second reflecting surfaces21US 5,983,624 A1999