F05D 2270/09
To cope with emergencies
Official title: to cope with emergencies
F05D2270/09 (To cope with emergencies) appears on 506 US grants and 523 published applications in this corpus.
Search patents in F05D- Granted patents
- 506
- Published applications
- 523
- Assignees
- 141
- Inventors
- 1,152
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 2 |
| 2002 | 4 | 2 |
| 2003 | 7 | 13 |
| 2004 | 10 | 10 |
| 2005 | 5 | 11 |
| 2006 | 9 | 14 |
| 2007 | 8 | 16 |
| 2008 | 14 | 16 |
| 2009 | 8 | 12 |
| 2010 | 10 | 20 |
| 2011 | 13 | 11 |
| 2012 | 14 | 18 |
| 2013 | 11 | 19 |
| 2014 | 14 | 21 |
| 2015 | 14 | 16 |
| 2016 | 19 | 30 |
| 2017 | 13 | 34 |
| 2018 | 27 | 42 |
| 2019 | 40 | 39 |
| 2020 | 35 | 40 |
| 2021 | 34 | 31 |
| 2022 | 37 | 29 |
| 2023 | 37 | 35 |
| 2024 | 33 | 16 |
| 2025 | 23 | 16 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F05D 2270/092In particular blow-out and relightIndexing code96
- F05D 2270/091In particular sudden load lossIndexing code86
- F05D 2270/094By using back-up controlsIndexing code56
- F05D 2270/093Of one engine in a multi-engine systemIndexing code51
- F05D 2270/095By temporary overriding set control limitsIndexing code31
- F05D 2270/096Caused by water or hail ingestionIndexing code17
Recent patents
- Operating aircraft propulsion system during engine-inoperative event26 May 2026US 12,637,974 B2Pratt & Whitney Canada Corp.
- Aircraft comprising a gas turbine engine having primary and secondary fuel-injectors19 May 2026US 12,631,149 B2ROLLS-ROYCE plc
- Apparatus and method to control supplying fuel to a gas turbine system3 Mar 2026US 12,565,861 B1Air Products and Chemicals, Inc.
- Inducing windmilling to allow oil flow during fire-induced emergency state10 Feb 2026US 12,546,232 B1Pratt & Whitney Canada Corp.
- Aircraft propulsion system with start-up control device3 Feb 2026US 12,540,577 B2Safran
- Aircraft engine with lubricant system having windmilling configuration8 Oct 2026US 2026/0309051 A1Pratt & Whitney Canada Corp.
- Turbo-expander overspeed protection20 Aug 2026US 2026/0243203 A1NET Power LLC
- System and method for frangible plug electronic shaft shear detection23 Jul 2026US 2026/0210268 A1Pratt & Whitney Canada Corp.
- Aircraft turbine engine having means for detecting the axial displacement of a fan16 Jul 2026US 2026/0201813 A1Safran Aircraft Engines
- Valve for an aircraft turbine engine2 Jul 2026US 2026/0185626 A1Safran Aircraft Engines
Most cited
By later US patents
- Lubrication of windmilling journal bearings269US 7,662,059 B2United Technologies Corporation · 2010
- Failsafe electronic control systems84US 4,718,229 AROLLS-ROYCE plc · 1988
- Emergency lubrication system73US 7,387,189 B2United Technologies Corporation · 2008
- Method of operating an aircraft bypass turbofan engine having variable fan outlet guide vanes71US 5,259,187 AGeneral Electric Company · 1993
- Apparatus and method for gas turbine active combustion control system67US 7,966,801 B2General Electric Company · 2011