B64C 27/025
Rotor drives, in particular for taking off
Official title: {Rotor drives, in particular for taking off; Combination of autorotation rotors and driven rotors}
B64C27/025 (Rotor drives, in particular for taking off) appears on 55 US grants and 51 published applications in this corpus.
Search patents in B64C- Granted patents
- 55
- Published applications
- 51
- Assignees
- 23
- Inventors
- 51
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 12 |
| 2013 | 2 | 2 |
| 2014 | 4 | 1 |
| 2015 | 17 | 2 |
| 2016 | 3 | 2 |
| 2017 | 4 | 2 |
| 2018 | 1 | 4 |
| 2019 | 1 | 1 |
| 2020 | 3 | 4 |
| 2021 | 2 | 3 |
| 2022 | 3 | 6 |
| 2023 | 3 | 3 |
| 2024 | 5 | 2 |
| 2025 | 3 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mast dampener for a rotorcraft2 Sep 2025US 12,404,018 B2Jaunt Air Mobility, LLC
- Supplementary lift generation system for multicopter rotorcraft26 Aug 2025US 12,397,909 B2
- Aerial vehicle4 Feb 2025US 12,214,874 B2Unmanned Aerospace LLC
- Aircraft and methods of operating the same to increase descent angles thereof26 Nov 2024US 12,151,808 B2Honeywell International Inc.
- Hybrid gyrodyne aircraft14 May 2024US 11,983,018 B2Aergility Corporation
- Gyroplane take-off rotor11 Jun 2026US 2026/0159232 A1Ela Aviacion, S.L.
- Aircraft landing site determination for automated emergency landing control2 Apr 2026US 2026/0093269 A1The Boeing Company
- Supplementary lift generation system for multicopter rotorcraft10 Jul 2025US 2025/0223028 A1
- Aerial Vehicle28 Nov 2024US 2024/0391585 A1Unmanned Aerospace LLC
- Aircraft and methods of operating the same to increase descent angles thereof22 Feb 2024US 2024/0059409 A1Honeywell International Inc.
Most cited
By later US patents
- Hovering gyro aircraft41US 6,513,752 B2Cartercopters, L.L.C. · 2003
- Two-place, collective pitch and throttle control35US 8,844,880 B1Groen Brothers Aviation, Inc. · 2014
- Compound aircraft with autorotation30US 8,403,255 B22013
- Aerovehicle system including plurality of autogyro assemblies25US 8,540,183 B2Heliplane, LLC · 2013
- Reduction drive and torque-limiting clutch for autogyro aircraft19US 6,077,041 ACartercopters, L.L.C. · 2000