F23R 3/04
Air inlet arrangements
F23R3/04 (Air inlet arrangements) appears on 2,982 US grants and 3,056 published applications in this corpus.
Search patents in F23R- Granted patents
- 2,982
- Published applications
- 3,056
- Assignees
- 320
- Inventors
- 3,575
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 6 | 0 |
| 1978 | 13 | 0 |
| 1979 | 8 | 0 |
| 1980 | 18 | 0 |
| 1981 | 12 | 0 |
| 1982 | 12 | 0 |
| 1983 | 12 | 0 |
| 1984 | 14 | 0 |
| 1985 | 7 | 0 |
| 1986 | 11 | 0 |
| 1987 | 12 | 0 |
| 1988 | 14 | 0 |
| 1989 | 16 | 0 |
| 1990 | 21 | 0 |
| 1991 | 8 | 0 |
| 1992 | 31 | 0 |
| 1993 | 34 | 0 |
| 1994 | 51 | 0 |
| 1995 | 18 | 0 |
| 1996 | 28 | 0 |
| 1997 | 27 | 0 |
| 1998 | 26 | 0 |
| 1999 | 23 | 0 |
| 2000 | 22 | 0 |
| 2001 | 34 | 12 |
| 2002 | 45 | 32 |
| 2003 | 35 | 42 |
| 2004 | 42 | 61 |
| 2005 | 45 | 50 |
| 2006 | 44 | 47 |
| 2007 | 23 | 71 |
| 2008 | 18 | 67 |
| 2009 | 39 | 102 |
| 2010 | 54 | 164 |
| 2011 | 64 | 91 |
| 2012 | 96 | 136 |
| 2013 | 96 | 165 |
| 2014 | 87 | 204 |
| 2015 | 129 | 149 |
| 2016 | 156 | 248 |
| 2017 | 116 | 200 |
| 2018 | 128 | 193 |
| 2019 | 198 | 198 |
| 2020 | 234 | 151 |
| 2021 | 193 | 104 |
| 2022 | 159 | 107 |
| 2023 | 134 | 152 |
| 2024 | 150 | 120 |
| 2025 | 111 | 100 |
| 2026 | 88 | 90 |
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
- 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
- Combustor for a gas turbine1 Sep 2026US 12,723,759 B2Siemens Energy Global GmbH & Co. KG
- 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
- Fuel injector for a gas turbine engine17 Sep 2026US 2026/0276197 A1General Electric Company
- Reverse Flame Vortex Combustion Chamber10 Sep 2026US 2026/0266465 A1
Most cited
By later US patents
- 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
- Mixing ducts for a gas-turbine annular combustion chamber142US 5,839,283 AABB Research Ltd. · 1998
- Method and apparatus for cooling combustor liner and transition piece of a gas turbine139US 7,010,921 B2General Electric Company · 2006
- High inlet mach combustor for gas turbine engine135US 5,619,855 AGeneral Electric Company · 1997