F23R 3/02
Continuous combustion chambers using liquid or gaseous fuel: characterised by the air-flow
Official title: characterised by the air-flow or gas-flow configuration (reverse- flow combustion chambers F23R3/54; cyclone or vortex type combustion chambers F23R3/58)
F23R3/02 (Continuous combustion chambers using liquid or gaseous fuel: characterised by the air-flow) appears on 3,723 US grants and 3,617 published applications in this corpus.
Search patents in F23R- Granted patents
- 3,723
- Published applications
- 3,617
- Assignees
- 418
- Inventors
- 4,408
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 34 | 0 |
| 1977 | 23 | 0 |
| 1978 | 19 | 0 |
| 1979 | 21 | 0 |
| 1980 | 29 | 0 |
| 1981 | 25 | 0 |
| 1982 | 17 | 0 |
| 1983 | 17 | 0 |
| 1984 | 24 | 0 |
| 1985 | 20 | 0 |
| 1986 | 17 | 0 |
| 1987 | 17 | 0 |
| 1988 | 22 | 0 |
| 1989 | 27 | 0 |
| 1990 | 25 | 0 |
| 1991 | 23 | 0 |
| 1992 | 43 | 0 |
| 1993 | 53 | 0 |
| 1994 | 74 | 0 |
| 1995 | 34 | 0 |
| 1996 | 44 | 0 |
| 1997 | 46 | 0 |
| 1998 | 38 | 0 |
| 1999 | 40 | 0 |
| 2000 | 35 | 0 |
| 2001 | 49 | 14 |
| 2002 | 61 | 39 |
| 2003 | 41 | 48 |
| 2004 | 46 | 74 |
| 2005 | 52 | 68 |
| 2006 | 58 | 58 |
| 2007 | 34 | 96 |
| 2008 | 23 | 73 |
| 2009 | 57 | 111 |
| 2010 | 61 | 179 |
| 2011 | 70 | 110 |
| 2012 | 103 | 156 |
| 2013 | 110 | 187 |
| 2014 | 102 | 250 |
| 2015 | 150 | 186 |
| 2016 | 178 | 286 |
| 2017 | 136 | 237 |
| 2018 | 151 | 226 |
| 2019 | 233 | 238 |
| 2020 | 265 | 183 |
| 2021 | 213 | 130 |
| 2022 | 191 | 130 |
| 2023 | 161 | 179 |
| 2024 | 184 | 148 |
| 2025 | 133 | 107 |
| 2026 | 94 | 104 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Combustion section for a turbine engine29 Sep 2026US 12,747,862 B2General Electric Company
- Dome combustor with air blast22 Sep 2026US 12,742,551 B1Rtx Corporation
- 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
- Combustion device comprising orthogonally arranged channels8 Sep 2026US 12,729,856 B2Hanwha Aerospace Co., Ltd.
- Fuel nozzle and swirler1 Sep 2026US 12,723,758 B2General Electric Company
- Swirler for a fuel nozzle assembly of a gas turbine engine8 Oct 2026US 2026/0309328 A1General Electric Company
- Annular vortex combustor for a turbine engine8 Oct 2026US 2026/0309330 A1General Electric Company
- Coupling assembly for a turbine engine1 Oct 2026US 2026/0298472 A1General Electric Company
- Gas turbine engine including fluid diodes24 Sep 2026US 2026/0287175 A1General Electric Company
- Plasma Ignition and Combustion Assist System for Gas Turbine Engines17 Sep 2026US 2026/0275917 A1Acutronic Turbines Inc.
Most cited
By later US patents
- Synthetic jet actuator and applications thereof162US 5,758,823 AGeorgia Tech Research Corporation · 1998
- Impingement cooled transition duct153US 4,719,748 AGeneral Electric Company · 1988
- Gas turbine ultra low NOx combustor149US 5,361,586 AWestinghouse Electric Corp. · 1994
- Burner tube and method for mixing air and gas in a gas turbine engine149US 6,993,916 B2General Electric Company · 2006
- Closed-cycle gas turbine chemical processor147US 4,528,811 AGeneral Electric Company · 1985