F23R 3/52
Toroidal combustion chambers
F23R3/52 (Toroidal combustion chambers) appears on 72 US grants and 76 published applications in this corpus.
Search patents in F23R- Granted patents
- 72
- Published applications
- 76
- Assignees
- 44
- Inventors
- 143
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 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 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 3 | 2 |
| 2005 | 0 | 8 |
| 2006 | 6 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 5 | 7 |
| 2015 | 5 | 5 |
| 2016 | 2 | 3 |
| 2017 | 1 | 5 |
| 2018 | 8 | 3 |
| 2019 | 3 | 3 |
| 2020 | 3 | 6 |
| 2021 | 4 | 4 |
| 2022 | 3 | 2 |
| 2023 | 2 | 0 |
| 2024 | 3 | 5 |
| 2025 | 1 | 4 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Parallel-jets combustion chamber of a turbine engine4 Aug 2026US 12,698,900 B2Prvni brnenska strojirna Velka Bites, a.s.
- Combustor for a micro-turbine gas generator28 Jul 2026US 12,693,020 B2Jetoptera, Inc.
- Integrated combustor liner shaft fuel injection28 Jul 2026US 12,693,021 B2Rtx Corporation
- Turbine engine having a reverse flow annular vortex combustor13 May 2025US 12,298,009 B1General Electric Company
- Trapped vortex combustor and method for operating the same6 Aug 2024US 12,055,297 B2General Electric Company
- Flow Assisted Integral Splash Plate26 Mar 2026US 2026/0085836 A1
- Combustor having a plurality of openings to control a vortex driver jet for a gas turbine engine26 Feb 2026US 2026/0055895 A1General Electric Company
- Parallel-jets combustion chamber of a turbine engine25 Dec 2025US 2025/0389422 A1Prvni brnenska strojirna Velka Bites, a.s.
- Rapid bulk swirl quench zone for super compact combustor13 Nov 2025US 2025/0347411 A1Rtx Corporation
- Super compact combustor13 Nov 2025US 2025/0347417 A1Rtx Corporation
Most cited
By later US patents
- Combustion chamber for a gas turbine94US 7,318,317 B2ALSTOM Technology Ltd · 2008
- Method of using a combustion chamber for a gas turbine91US 7,237,385 B2ALSTOM Technology Ltd · 2007
- Design of adiabatic combustors82US 6,826,912 B2Yeshayahou Levy · 2004
- Combustion apparatus including an air-fuel premixing chamber66US 4,563,875 A1986
- Gas turbine combustion chamber arrangement45US 4,040,251 ANorthern Research & Engineering Corp. · 1977