F02C 9/46
Emergency fuel control
F02C9/46 (Emergency fuel control) appears on 237 US grants and 241 published applications in this corpus.
Search patents in F02C- Granted patents
- 237
- Published applications
- 241
- Assignees
- 90
- Inventors
- 600
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 8 | 1 |
| 2002 | 0 | 3 |
| 2003 | 5 | 11 |
| 2004 | 9 | 5 |
| 2005 | 4 | 7 |
| 2006 | 6 | 5 |
| 2007 | 1 | 5 |
| 2008 | 4 | 10 |
| 2009 | 3 | 2 |
| 2010 | 7 | 9 |
| 2011 | 2 | 5 |
| 2012 | 2 | 5 |
| 2013 | 3 | 4 |
| 2014 | 5 | 7 |
| 2015 | 7 | 11 |
| 2016 | 4 | 18 |
| 2017 | 7 | 20 |
| 2018 | 11 | 14 |
| 2019 | 22 | 8 |
| 2020 | 12 | 16 |
| 2021 | 10 | 15 |
| 2022 | 21 | 11 |
| 2023 | 10 | 14 |
| 2024 | 16 | 7 |
| 2025 | 6 | 16 |
| 2026 | 9 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Use of propeller electronic controller in protection from uncontrollable high thrust25 Aug 2026US 12,715,598 B1Pratt & Whitney Canada Corp.
- Aircraft comprising a gas turbine engine having primary and secondary fuel-injectors19 May 2026US 12,631,149 B2ROLLS-ROYCE plc
- Detecting gas or fuel leaks in a gas turbine engine28 Apr 2026US 12,612,865 B2Pratt & Whitney Canada Corp.
- Gas turbine control device, gas turbine control method, and gas turbine control program21 Apr 2026US 12,607,148 B2Mitsubishi Heavy Industries, Ltd.
- Fuel leak combustion assembly for igniting a gaseous fuel leaking from a potential leak location10 Mar 2026US 12,571,348 B2General Electric Company
- Hydrogen fuel supply system and aircraft17 Sep 2026US 2026/0274431 A1Kawasaki Jukogyo Kabushiki Kaisha
- Use of propeller electronic controller in protection from uncontrollable high thrust27 Aug 2026US 2026/0250004 A1Pratt & Whitney Canada Corp.
- Gas detection system23 Jul 2026US 2026/0210924 A1GE Vernova Infrastructure Technology LLC
- Uncontrollable high thrust (uht) protection for hybrid-electric aircraft propulsion systems2 Jul 2026US 2026/0185492 A1Pratt & Whitney Canada Corp.
- Fuel leak combustion assembly for igniting a gaseous fuel leaking from a potential leak location25 Jun 2026US 2026/0177011 A1General Electric Company
Most cited
By later US patents
- Failsafe electronic control systems84US 4,718,229 AROLLS-ROYCE plc · 1988
- Apparatus and method for gas turbine active combustion control system67US 7,966,801 B2General Electric Company · 2011
- Method of operating a gas turbine engine63US 7,926,287 B2Pratt & Whitney Canada Corp. · 2011
- Operation of an aircraft engine after emergency shutdown56US 7,854,582 B2Pratt & Whitney Canada Corp. · 2010
- Super contingency aircraft engine control40US 4,500,966 AChandler Evans Inc. · 1985