F23R 3/34
Feeding into different combustion zones
F23R3/34 (Feeding into different combustion zones) appears on 1,648 US grants and 1,678 published applications in this corpus.
Search patents in F23R- Granted patents
- 1,648
- Published applications
- 1,678
- Assignees
- 203
- Inventors
- 2,272
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 10 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 14 | 0 |
| 1993 | 26 | 0 |
| 1994 | 34 | 0 |
| 1995 | 17 | 0 |
| 1996 | 8 | 0 |
| 1997 | 23 | 0 |
| 1998 | 22 | 0 |
| 1999 | 21 | 0 |
| 2000 | 17 | 0 |
| 2001 | 23 | 10 |
| 2002 | 34 | 26 |
| 2003 | 23 | 24 |
| 2004 | 26 | 39 |
| 2005 | 28 | 31 |
| 2006 | 27 | 28 |
| 2007 | 13 | 47 |
| 2008 | 15 | 28 |
| 2009 | 27 | 58 |
| 2010 | 28 | 90 |
| 2011 | 29 | 56 |
| 2012 | 35 | 71 |
| 2013 | 73 | 97 |
| 2014 | 55 | 108 |
| 2015 | 69 | 80 |
| 2016 | 90 | 96 |
| 2017 | 62 | 131 |
| 2018 | 82 | 94 |
| 2019 | 82 | 89 |
| 2020 | 101 | 64 |
| 2021 | 85 | 66 |
| 2022 | 92 | 84 |
| 2023 | 84 | 78 |
| 2024 | 80 | 66 |
| 2025 | 63 | 67 |
| 2026 | 51 | 50 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coated components for coke abatement in gas turbine engines6 Oct 2026US 12,753,924 B2General Electric Company
- 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
- Combustion device comprising orthogonally arranged channels8 Sep 2026US 12,729,856 B2Hanwha Aerospace Co., Ltd.
- 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
- Nozzle assembly, combustor, and gas turbine including same10 Sep 2026US 2026/0266464 A1Doosan Enerbility Co., Ltd.
- Burner assembly, gas turbine combustor, and gas turbine27 Aug 2026US 2026/0251305 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
- Gas turbine power generating machine164US 7,581,379 B2Hitachi, Ltd. · 2009
- 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