B64C 27/56
Characterised by the control initiating means
Official title: characterised by the control initiating means, e.g. manually actuated
B64C27/56 (Characterised by the control initiating means) appears on 486 US grants and 520 published applications in this corpus.
Search patents in B64C- Granted patents
- 486
- Published applications
- 520
- Assignees
- 132
- Inventors
- 722
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 1 | 7 |
| 2006 | 4 | 4 |
| 2007 | 3 | 5 |
| 2008 | 1 | 3 |
| 2009 | 2 | 7 |
| 2010 | 5 | 8 |
| 2011 | 8 | 9 |
| 2012 | 6 | 11 |
| 2013 | 7 | 22 |
| 2014 | 15 | 19 |
| 2015 | 30 | 27 |
| 2016 | 25 | 27 |
| 2017 | 28 | 71 |
| 2018 | 37 | 53 |
| 2019 | 39 | 55 |
| 2020 | 56 | 39 |
| 2021 | 45 | 35 |
| 2022 | 31 | 33 |
| 2023 | 42 | 31 |
| 2024 | 26 | 19 |
| 2025 | 28 | 16 |
| 2026 | 15 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Automated and user assisted autorotation for air vehicle6 Oct 2026US 12,754,570 B2Skyryse, Inc.
- Rotor position control system11 Aug 2026US 12,703,481 B2Textron Innovations Inc.
- Rotorcraft system for command mode transitions7 Jul 2026US 12,673,766 B2Textron Innovations Inc.
- Aircraft flight compensator9 Jun 2026US 12,649,567 B2Safran Electronics & Defense
- Blade pitch detection for an aerial vehicle26 May 2026US 12,637,209 B2Unmanned Aerospace LLC
- Vertical take-off and landing aircraft3 Sep 2026US 2026/0257806 A1
- Swashplateless helicopter and control method thereof27 Aug 2026US 2026/0249987 A1Guangzhou Walkera Technology Co., Ltd
- Radio controlled aircraft, remote controller and methods for use therewith20 Aug 2026US 2026/0241304 A1Drone-Control, LLC
- Aircraft with a modular electric flight control system6 Aug 2026US 2026/0225713 A1Airbus Helicopters
- Helicopter tail rotor drive system on demand speed control16 Jul 2026US 2026/0200574 A1Textron Innovations Inc.
Most cited
By later US patents
- Programmable, linear collective control system for a helicopter144US 5,076,517 AUnited Technologies Corporation · 1991
- Modular and morphable air vehicle125US 9,045,226 B2Piasecki Aircraft Corporation · 2015
- Multi-axis force stick, self-trimmed aircraft flight control system116US 4,420,808 AUnited Technologies Corporation · 1983
- Flying car82US 6,745,977 B12004
- Helicopter collective stick of the displacement type occupying a minimum space envelope yet whose grip generates an arc of large radius72US 5,156,363 AUnited Technologies Corporation · 1992