B64C 25/22
Fluid
Official title: fluid
B64C25/22 (Fluid) appears on 188 US grants and 201 published applications in this corpus.
Search patents in B64C- Granted patents
- 188
- Published applications
- 201
- Assignees
- 55
- Inventors
- 259
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 4 |
| 2009 | 1 | 6 |
| 2010 | 2 | 5 |
| 2011 | 4 | 3 |
| 2012 | 4 | 8 |
| 2013 | 9 | 7 |
| 2014 | 7 | 5 |
| 2015 | 4 | 10 |
| 2016 | 8 | 13 |
| 2017 | 8 | 8 |
| 2018 | 12 | 21 |
| 2019 | 15 | 17 |
| 2020 | 12 | 13 |
| 2021 | 19 | 12 |
| 2022 | 15 | 13 |
| 2023 | 14 | 15 |
| 2024 | 14 | 15 |
| 2025 | 16 | 14 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aircraft6 Oct 2026US 12,752,911 B2Airbus Operations GmbH
- Hydraulic actuation system18 Aug 2026US 12,709,382 B2Airbus Operations GmbH
- Landing gear systems and methods of testing18 Aug 2026US 12,709,383 B2Airbus Operations GmbH
- Hydraulic actuator21 Jul 2026US 12,687,180 B2Airbus Operations GmbH
- Method and electrohydraulic system for controlling a retractable landing gear of an aircraft, landing gear and aircraft14 Jul 2026US 12,679,528 B2Airbus Helicopters
- Aircraft control system30 Jul 2026US 2026/0217366 A1Safran Landing Systems UK LTD
- Aircraft landing gear assembly28 May 2026US 2026/0145784 A1Airbus Operations GmbH
- Method and electrohydraulic system for controlling a retractable landing gear of an aircraft, landing gear and aircraft28 May 2026US 2026/0145785 A1Airbus Helicopters
- Aircraft landing gear assembly28 May 2026US 2026/0145786 A1Airbus Operations GmbH
- Locking Electromechanical Actuator with Pneumatic Backup21 May 2026US 2026/0138735 A1Textron Aviation Inc.
Most cited
By later US patents
- Dynamic activation of pumps of a fluid power system166US 10,040,541 B2The Boeing Company · 2018
- Methods and systems for operating aircraft landing gears34US 6,854,689 B1The Boeing Company · 2005
- Hydraulic actuator for semi levered landing gear31US 9,481,452 B2The Boeing Company · 2016
- Landing gear drag strut actuator having self-contained pressure charge for emergency use28US 5,184,465 AThe Boeing Company · 1993
- Dual mode positioner for an aircraft landing gear axle beam26US 6,308,916 B1The B. F. Goodrich Company · 2001