B64D 27/026
Comprising different types of power plants
Official title: {comprising different types of power plants, e.g. combination of a piston engine and a gas-turbine (Hybrid electric aircraft B64D27/33)}
B64D27/026 (Comprising different types of power plants) appears on 898 US grants and 1,071 published applications in this corpus.
Search patents in B64D- Granted patents
- 898
- Published applications
- 1,071
- Assignees
- 219
- Inventors
- 1,351
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 5 |
| 2010 | 0 | 18 |
| 2011 | 1 | 29 |
| 2012 | 8 | 27 |
| 2013 | 15 | 18 |
| 2014 | 30 | 18 |
| 2015 | 26 | 15 |
| 2016 | 16 | 39 |
| 2017 | 24 | 54 |
| 2018 | 38 | 112 |
| 2019 | 65 | 79 |
| 2020 | 82 | 121 |
| 2021 | 71 | 115 |
| 2022 | 71 | 128 |
| 2023 | 150 | 137 |
| 2024 | 134 | 84 |
| 2025 | 99 | 48 |
| 2026 | 47 | 21 |
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
- Aircraft hybrid electric propulsion and attitude controller15 Sep 2026US 12,735,191 B2Rtx Corporation
- Hybrid gas turbofan powered idle descent mode15 Sep 2026US 12,735,991 B2Rtx Corporation
- Distributed propulsion system for vertical take off and landing closed wing aircraft8 Sep 2026US 12,728,983 B2Textron Innovations Inc.
- Pusher aircraft power plant with swirl recovery vanes8 Sep 2026US 12,729,659 B2Pratt & Whitney Canada Corp.
- Multi-drive unit powerplant for an aircraft1 Oct 2026US 2026/0296660 A1Pratt & Whitney Canada Corp.
- Hybrid-electric propulsion system equipped with a coupler for switching between modes of operation17 Sep 2026US 2026/0275941 A1General Electric Company
- Aerial vehicle and control method thereof, using hybrid distributed propulsion system10 Sep 2026US 2026/0264884 A1Thinkware Corporation
- Aircraft propulsion system with modular open propulsor rotor assembly30 Jul 2026US 2026/0217361 A1Rtx Corporation
- Tri-wing, hybrid vertical take-off and landing aircraft9 Jul 2026US 2026/0192915 A1Beihang University
Most cited
By later US patents
- On-board redundant power system for unmanned aerial vehicles142US 9,376,208 B1Amazon Technologies, Inc. · 2016
- Purebred and hybrid electric VTOL tilt rotor aircraft116US 8,469,306 B22013
- Turboprop propulsion apparatus113US 4,817,382 AThe Boeing Company · 1989
- Noise reduction in aircraft propellers100US 5,190,441 AGeneral Electric Company · 1993
- Ultra-efficient propulsor with an augmentor fan circumscribing a turbofan98US 8,689,538 B2The Boeing Company · 2014