F23R 3/56
Combustion chambers having rotary flame tubes
F23R3/56 (Combustion chambers having rotary flame tubes) appears on 38 US grants and 48 published applications in this corpus.
Search patents in F23R- Granted patents
- 38
- Published applications
- 48
- Assignees
- 21
- Inventors
- 95
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 4 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 0 |
| 2012 | 2 | 5 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 6 |
| 2017 | 1 | 5 |
| 2018 | 3 | 9 |
| 2019 | 8 | 3 |
| 2020 | 4 | 3 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of operating a rotating detonation combustor18 Nov 2025US 12,474,056 B1General Electric Company
- Rotating internal combustion engine26 Aug 2025US 12,398,670 B2Green Engine, LLC
- Acoustically absorptive liners for passive control of unwanted acoustic modes in rotating detonation combustors25 Feb 2025US 12,234,773 B1Hysonic Technologies, LLC
- Regenerative cooling and adjustable throat for rotating detonation engine26 Dec 2023US 11,852,077 B2Rtx Corporation
- Isolation section suppressing shock wave forward transmission structure for wave rotor combustor and wave rotor combustor21 Feb 2023US 11,585,533 B2Nanjing University of Aeronautics and Astronautics
- Rotating internal combustion engine16 Apr 2026US 2026/0104006 A1Green Engine, LLC
- Regenerative cooling and adjustable throat for rotating detonation engine7 Mar 2024US 2024/0077028 A1Rtx Corporation
- Regenerative cooling and adjustable throat for rotating detonation engine20 Oct 2022US 2022/0333530 A1Raytheon Technologies Corporation
- Isolation section suppressing shock wave forward transmission structure for wave rotor combustor and wave rotor combustor24 Mar 2022US 2022/0090789 A1Nanjing University of Aeronautics and Astronautics
- Variable geometry rotating detonation combustor17 Dec 2020US 2020/0393128 A1General Electric Company
Most cited
By later US patents
- Wave rotor detonation engine49US 6,460,342 B1Advanced Research and Technology Institute, Inc. · 2002
- Rotary heat engine46US 5,408,824 A1995
- Partitioned multi-channel combustor34US 6,526,936 B2Advanced Research and Technology Institute, Inc. · 2003
- Rotary heat engine28US 5,560,196 A1996
- Pressure wave machine with integrated combustion and method for cooling the rotor of this pressure wave machine24US 5,522,217 AABB Management AG · 1996