B64D 31/09
In response to power plant failure
Official title: in response to power plant failure
B64D31/09 (In response to power plant failure) appears on 166 US grants and 196 published applications in this corpus.
Search patents in B64D- Granted patents
- 166
- Published applications
- 196
- Assignees
- 78
- Inventors
- 358
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 3 | 4 |
| 2016 | 3 | 10 |
| 2017 | 4 | 7 |
| 2018 | 9 | 11 |
| 2019 | 12 | 13 |
| 2020 | 16 | 25 |
| 2021 | 8 | 21 |
| 2022 | 16 | 21 |
| 2023 | 25 | 16 |
| 2024 | 21 | 23 |
| 2025 | 19 | 20 |
| 2026 | 19 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multicore hybrid-electric powertrain controller6 Oct 2026US 12,752,769 B2Pratt & Whitney Canada Corp.
- System and method for controlling differential thrust of a blown lift aircraft8 Sep 2026US 12,728,985 B2Electra Aero, Inc.
- Electrical energy system for barring rotor25 Aug 2026US 12,715,597 B2Rolls-Royce North American Technologies Inc.
- Use of propeller electronic controller in protection from uncontrollable high thrust25 Aug 2026US 12,715,598 B1Pratt & Whitney Canada Corp.
- Flight system and method for responding failure thereof25 Aug 2026US 12,715,599 B2Hyundai Motor Company
- Method for assisting with propulsion by detecting a failure of a turboshaft engine of an aircraft1 Oct 2026US 2026/0296669 A1Safran Helicopter Engines
- Control assembly for aircraft propulsion systems24 Sep 2026US 2026/0285492 A1Pratt & Whitney Canada Corp.
- Drive system for an aircraft24 Sep 2026US 2026/0285495 A1
- Electric flying object17 Sep 2026US 2026/0274465 A1Mitsubishi Heavy Industries, Ltd.
- Hybrid propulsion system for vtol aircraft10 Sep 2026US 2026/0264865 A1
Most cited
By later US patents
- Aircraft having a fault tolerant distributed propulsion system65US 10,232,950 B2Bell Helicopter Textron Inc. · 2019
- Aircraft having redundant directional control40US 10,597,164 B2Textron Innovations Inc. · 2020
- Controlled flight of a multicopter experiencing a failure affecting an effector39US 9,856,016 B2ETH Zurich · 2018
- Emergency control aircraft system using thrust modulation32US 6,041,273 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2000
- Emergency multiengine aircraft system for lateral control using differential thrust control of wing engines32US 6,102,330 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2000