F02C 9/44
Responsive to the speed of aircraft
Official title: responsive to the speed of aircraft, e.g. Mach number control, optimisation of fuel consumption
F02C9/44 (Responsive to the speed of aircraft) appears on 71 US grants and 74 published applications in this corpus.
Search patents in F02C- Granted patents
- 71
- Published applications
- 74
- Assignees
- 38
- Inventors
- 187
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 2 |
| 2010 | 3 | 2 |
| 2011 | 1 | 3 |
| 2012 | 0 | 0 |
| 2013 | 3 | 1 |
| 2014 | 2 | 2 |
| 2015 | 3 | 2 |
| 2016 | 2 | 4 |
| 2017 | 2 | 6 |
| 2018 | 1 | 6 |
| 2019 | 5 | 2 |
| 2020 | 4 | 8 |
| 2021 | 8 | 8 |
| 2022 | 6 | 3 |
| 2023 | 3 | 7 |
| 2024 | 4 | 5 |
| 2025 | 6 | 5 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anti-stall system with a fuel cell22 Sep 2026US 12,742,425 B2General Electric Company
- Turbine engine including a combustor22 Sep 2026US 12,742,550 B2General Electric Company
- Power plant for controlling the renewable energy use in an LNG train18 Aug 2026US 12,710,013 B2
- System and method for tracking aircraft fuel usage and emissions12 May 2026US 12,623,792 B2General Electric Company
- System and method for operating a turboprop engine7 Oct 2025US 12,435,674 B2Pratt & Whitney Canada Corp.
- System and method for tracking aircraft fuel usage and emissions7 Aug 2025US 2025/0250024 A1General Electric Company
- Combustor for a turbine engine3 Apr 2025US 2025/0109856 A1General Electric Company
- Systems and methods for determining real time fuel consumption information of an aircraft27 Feb 2025US 2025/0067224 A1The Boeing Company
- Power plant for controlling the renewable energy use in an lng train6 Feb 2025US 2025/0043731 A1Nuovo Pignone Tecnologie Srl
- Method of controlling the renewable energy use in an lng train9 Jan 2025US 2025/0012220 A1Nuovo Pignone Tecnologie Srl
Most cited
By later US patents
- Control system for variable pitch fan propulsor276US 3,932,058 AUnited Technologies Corporation · 1976
- Single lever power controller for manned and unmanned aircraft39US 6,171,055 B2Aurora Flight Sciences Corporation · 2001
- Control system for variable pitch fan propulsor with reverse pitch35US 3,936,226 AUnited Technologies Corporation · 1976
- Method and apparatus for the engine control of output shaft speed35US 6,748,744 B2Pratt & Whitney Canada Corp. · 2004
- Single lever power controller for manned and unmanned aircraft30US 6,340,289 B12002