B64C 11/40
Automatic
Official title: automatic
B64C11/40 (Automatic) appears on 82 US grants and 80 published applications in this corpus.
Search patents in B64C- Granted patents
- 82
- Published applications
- 80
- Assignees
- 33
- Inventors
- 142
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 3 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 3 |
| 2017 | 1 | 7 |
| 2018 | 3 | 5 |
| 2019 | 4 | 8 |
| 2020 | 14 | 13 |
| 2021 | 7 | 4 |
| 2022 | 4 | 4 |
| 2023 | 6 | 2 |
| 2024 | 7 | 7 |
| 2025 | 4 | 6 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Controlling rate of rotor feather by system secondary to primary blade angle control system14 Jul 2026US 12,679,527 B2Pratt & Whitney Canada Corp.
- Electronically piloted low pitch stop protection14 Jul 2026US 12,680,457 B2Ratier-Figeac SAS
- Pitch change mechanism with an actuator surrounding a fluid transfer bearing14 Apr 2026US 12,601,272 B2Safran Aircraft Engines
- Model-based speed governing for variable-pitch propeller2 Dec 2025US 12,486,023 B2Pratt & Whitney Canada Corp.
- Propeller assembly and pitch control unit2 Dec 2025US 12,486,811 B2Ge Aviation Czech S.R.O.
- Fan rotor with actuator with locking device24 Sep 2026US 2026/0285475 A1Safran Aircraft Engines
- Method and avionics device for controlling the pitch angle of a fan or propeller of an aircraft powertrain27 Aug 2026US 2026/0249980 A1Airbus Operations GmbH
- Method and avionics device for controlling the pitch angle of a fan or propeller of an aircraft powertrain27 Aug 2026US 2026/0250015 A1Airbus Operations GmbH
- Turbofan engine including a fan actuation system23 Apr 2026US 2026/0109469 A1GE Avio S. r. l.
- Turbofan engine including a fan actuation system26 Mar 2026US 2026/0085621 A1General Electric Company
Most cited
By later US patents
- Electronic propeller control system65US 6,059,528 AUnited Technologies Corporation · 2000
- Counterweighted propeller control system63US 5,897,293 AUnited Technologies Corporation · 1999
- Variable pitch propeller control system53US 6,422,816 B1Hamilton Sundstrand Corporation · 2002
- Pitch control apparatus for variable pitch propeller48US 5,209,640 AToyota Jidosha Kabushiki Kaisha · 1993
- Method and apparatus for controlling pitch of an aircraft propeller39US 5,997,250 ACatercopters, LLC · 1999