F23R 3/346
For staged combustion
Official title: {for staged combustion}
F23R3/346 (For staged combustion) appears on 677 US grants and 742 published applications in this corpus.
Search patents in F23R- Granted patents
- 677
- Published applications
- 742
- Assignees
- 118
- Inventors
- 1,116
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 11 | 0 |
| 1998 | 15 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 12 | 4 |
| 2002 | 11 | 8 |
| 2003 | 7 | 7 |
| 2004 | 9 | 8 |
| 2005 | 6 | 7 |
| 2006 | 5 | 6 |
| 2007 | 2 | 11 |
| 2008 | 2 | 4 |
| 2009 | 3 | 8 |
| 2010 | 7 | 25 |
| 2011 | 6 | 24 |
| 2012 | 1 | 20 |
| 2013 | 25 | 48 |
| 2014 | 24 | 48 |
| 2015 | 28 | 39 |
| 2016 | 35 | 42 |
| 2017 | 28 | 80 |
| 2018 | 33 | 54 |
| 2019 | 50 | 34 |
| 2020 | 55 | 28 |
| 2021 | 42 | 35 |
| 2022 | 45 | 33 |
| 2023 | 30 | 40 |
| 2024 | 41 | 48 |
| 2025 | 48 | 42 |
| 2026 | 31 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual fuel combustor for a turbine engine29 Sep 2026US 12,747,863 B2General Electric Company
- Turbine engine including a combustor22 Sep 2026US 12,742,550 B2General Electric Company
- Combustor head end section with air supply system for bundled tube fuel nozzle contained therein15 Sep 2026US 12,736,222 B2GE Vernova Infrastructure Technology LLC
- Immersed injector having compact premixing bodies8 Sep 2026US 12,729,857 B1GE Vernova Infrastructure Technology LLC
- Gas turbine engine and fuel nozzle assembly therefor28 Jul 2026US 12,693,019 B2General Electric Company
- Device and method for injecting a hydrogen-air mixture for a turbine engine burner8 Oct 2026US 2026/0309329 A1Safran
- Annular vortex combustor for a turbine engine8 Oct 2026US 2026/0309330 A1General Electric Company
- Turbine engine including a combustor1 Oct 2026US 2026/0298471 A1General Electric Company
- Additively Manufactured Annular Fuel Manifold6 Aug 2026US 2026/0226861 A1
- Gas turbine control device30 Jul 2026US 2026/0218664 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- Staged combustion of a low heating value fuel gas for driving a gas turbine166US 6,201,029 B1Marathon Oil Company · 2001
- Hybrid combustor with staged injection of pre-mixed fuel163US 4,112,676 AWestinghouse Electric Corp. · 1978
- Gas turbine ultra low NOx combustor149US 5,361,586 AWestinghouse Electric Corp. · 1994
- Gas turbine combustor146US 5,836,164 AHitachi, Ltd. · 1998
- Thermal power plant with sequential combustion and reduced-CO2 emission, and a method for operating a plant of this type129US 7,503,178 B2ALSTOM Technology Ltd · 2009