F02C 9/26
Control of fuel supply
Official title: Control of fuel supply (F02C9/48 takes precedence; fuel valves F02C7/232)
F02C9/26 (Control of fuel supply) appears on 3,125 US grants and 3,122 published applications in this corpus.
Search patents in F02C- Granted patents
- 3,125
- Published applications
- 3,122
- Assignees
- 443
- Inventors
- 4,863
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 22 | 0 |
| 1978 | 9 | 0 |
| 1979 | 11 | 0 |
| 1980 | 24 | 0 |
| 1981 | 37 | 0 |
| 1982 | 16 | 0 |
| 1983 | 22 | 0 |
| 1984 | 35 | 0 |
| 1985 | 23 | 0 |
| 1986 | 18 | 0 |
| 1987 | 21 | 0 |
| 1988 | 28 | 0 |
| 1989 | 24 | 0 |
| 1990 | 14 | 0 |
| 1991 | 21 | 0 |
| 1992 | 30 | 0 |
| 1993 | 18 | 0 |
| 1994 | 26 | 0 |
| 1995 | 15 | 0 |
| 1996 | 13 | 0 |
| 1997 | 18 | 0 |
| 1998 | 26 | 0 |
| 1999 | 18 | 0 |
| 2000 | 20 | 0 |
| 2001 | 31 | 9 |
| 2002 | 37 | 47 |
| 2003 | 42 | 60 |
| 2004 | 71 | 59 |
| 2005 | 31 | 69 |
| 2006 | 54 | 54 |
| 2007 | 44 | 68 |
| 2008 | 36 | 65 |
| 2009 | 45 | 85 |
| 2010 | 52 | 107 |
| 2011 | 58 | 75 |
| 2012 | 54 | 98 |
| 2013 | 88 | 128 |
| 2014 | 94 | 129 |
| 2015 | 95 | 139 |
| 2016 | 114 | 181 |
| 2017 | 119 | 191 |
| 2018 | 140 | 184 |
| 2019 | 166 | 132 |
| 2020 | 138 | 177 |
| 2021 | 152 | 181 |
| 2022 | 201 | 145 |
| 2023 | 179 | 209 |
| 2024 | 216 | 195 |
| 2025 | 200 | 188 |
| 2026 | 118 | 147 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02C 9/28Regulating systems responsive to plant or ambient parameters1,604
- F02C 9/263By means of fuel metering valves500
- F02C 9/40Specially adapted to the use of a special fuel or a plurality445
- F02C 9/32Characterised by throttling of fuel363
- F02C 9/46Emergency fuel control237
- F02C 9/42Specially adapted for the control of two or more plants simultaneously232
- F02C 9/30Characterised by variable fuel pump output132
- F02C 9/44Responsive to the speed of aircraft71
Recent patents
- Methods and apparatus for a cryogenic fuel distribution system using a bypass29 Sep 2026US 12,747,706 B2GE Avio S. r. l.
- Fueling schedule29 Sep 2026US 12,747,707 B2ROLLS-ROYCE plc
- System and method for controlling engines of a multi-engine aircraft engine assembly29 Sep 2026US 12,747,708 B2Pratt & Whitney Canada Corp.
- Anti-stall system with a fuel cell22 Sep 2026US 12,742,425 B2General Electric Company
- Selecting fuel for use in multi-fuel aircraft powerplant based on operation settings of powerplant performance characteristics22 Sep 2026US 12,742,426 B2Pratt & Whitney Canada Corp.
- Hydrogen supply system for an aircraft engine with a turbo-pump and a low-pressure burner8 Oct 2026US 2026/0309084 A1Airbus Operations GmbH
- Method for controlling a turbine engine comprising an electric machine8 Oct 2026US 2026/0309095 A1Safran Aircraft Engines
- Control device for gas turbine, gas turbine facility, control method for gas turbine, and control program for gas turbine8 Oct 2026US 2026/0309096 A1Mitsubishi Heavy Industries, Ltd.
- Gas turbine system and method for modifying gas turbine system8 Oct 2026US 2026/0309098 A1IHI Corporation
- Gas turbine operation method and gas turbine equipment capable of executing same8 Oct 2026US 2026/0309099 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- Coal gasification power generation plant280US 4,442,665 AGeneral Electric Company · 1984
- Control system for variable pitch fan propulsor276US 3,932,058 AUnited Technologies Corporation · 1976
- Dual orifice bypass system for dual-fuel gas turbine181US 6,145,318 AGeneral Electric Company · 2000
- Multi-compatible digital engine controller179US 9,429,078 B1Tucson Embedded Systems, Inc. · 2016
- Gas turbine engine overspeed prevention178US 9,689,316 B1Tucson Embedded Systems, Inc. · 2017