F23R 3/10
For primary air
Official title: for primary air (F23R3/06, F23R3/045 take precedence)
F23R3/10 (For primary air) appears on 1,731 US grants and 1,749 published applications in this corpus.
Search patents in F23R- Granted patents
- 1,731
- Published applications
- 1,749
- Assignees
- 227
- Inventors
- 2,339
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 12 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 17 | 0 |
| 1993 | 17 | 0 |
| 1994 | 30 | 0 |
| 1995 | 13 | 0 |
| 1996 | 21 | 0 |
| 1997 | 23 | 0 |
| 1998 | 21 | 0 |
| 1999 | 18 | 0 |
| 2000 | 16 | 0 |
| 2001 | 24 | 7 |
| 2002 | 24 | 10 |
| 2003 | 17 | 21 |
| 2004 | 24 | 41 |
| 2005 | 33 | 34 |
| 2006 | 24 | 28 |
| 2007 | 13 | 43 |
| 2008 | 14 | 44 |
| 2009 | 21 | 63 |
| 2010 | 33 | 93 |
| 2011 | 33 | 57 |
| 2012 | 53 | 86 |
| 2013 | 61 | 78 |
| 2014 | 45 | 121 |
| 2015 | 75 | 81 |
| 2016 | 93 | 118 |
| 2017 | 71 | 113 |
| 2018 | 76 | 105 |
| 2019 | 102 | 113 |
| 2020 | 117 | 84 |
| 2021 | 111 | 51 |
| 2022 | 84 | 56 |
| 2023 | 74 | 93 |
| 2024 | 92 | 89 |
| 2025 | 76 | 57 |
| 2026 | 56 | 63 |
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
- 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
- Combustor, gas turbine including combustor, and combustor flow guide member manufacturing method25 Aug 2026US 12,716,583 B2Doosan Enerbility Co., Ltd.
- 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
- Fuel injector for a gas turbine engine17 Sep 2026US 2026/0276197 A1General Electric Company
- Reverse Flame Vortex Combustion Chamber10 Sep 2026US 2026/0266465 A1
- Combustion device and gas turbine system3 Sep 2026US 2026/0258951 A1IHI Corporation
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
- High inlet mach combustor for gas turbine engine135US 5,619,855 AGeneral Electric Company · 1997
- Gas turbine combustor swirl vane arrangement131US 5,394,688 AWestinghouse Electric Corp. · 1995