F15B 2211/8757
Using redundant components or assemblies
Official title: using redundant components or assemblies
F15B2211/8757 (Using redundant components or assemblies) appears on 163 US grants and 191 published applications in this corpus.
Search patents in F15B- Granted patents
- 163
- Published applications
- 191
- Assignees
- 120
- Inventors
- 392
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 3 | 2 |
| 2008 | 1 | 5 |
| 2009 | 1 | 4 |
| 2010 | 2 | 2 |
| 2011 | 4 | 2 |
| 2012 | 1 | 3 |
| 2013 | 5 | 2 |
| 2014 | 1 | 8 |
| 2015 | 2 | 14 |
| 2016 | 6 | 7 |
| 2017 | 13 | 4 |
| 2018 | 3 | 15 |
| 2019 | 6 | 17 |
| 2020 | 15 | 13 |
| 2021 | 21 | 22 |
| 2022 | 14 | 14 |
| 2023 | 13 | 21 |
| 2024 | 18 | 9 |
| 2025 | 17 | 18 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Redundant hydraulic system1 Sep 2026US 12,722,687 B2Parker Hannfin EMEA S.à.r.l.
- Switching unit and pneumatic system1 Sep 2026US 12,723,604 B2Berlin Heart GmbH
- Hydraulic power steering system25 Aug 2026US 12,715,501 B2Hydac New Technologies GmbH
- Protection for a circuit for controlling the orientation of propeller blades of an aircraft engine7 Jul 2026US 12,674,475 B2Safran Aircraft Engines
- Movement control device with double balancing21 Apr 2026US 12,607,206 B2Manitou Italia S.R.L.
- Triple redundancy assembly in process control systems18 Jun 2026US 2026/0169506 A1Rotex Automation Limited
- Servo valve11 Jun 2026US 2026/0160345 A1Microtecnica S.R.L.
- Transfer valve with dual authority control porting7 May 2026US 2026/0126060 A1Hamilton Sundstrand Corporation
- Protection for a circuit for controlling the orientation of propeller blades of an aircraft engine15 Jan 2026US 2026/0016026 A1Safran Aircraft Engines
- Hydraulic force fight mitigation8 Jan 2026US 2026/0009408 A1Woodward, Inc.
Most cited
By later US patents
- Electro-hydraulic actuator system52US 7,191,593 B1Northrop Grumman Corporation · 2007
- Flow sensing auxiliary pump by-pass valve39US 4,116,577 ANational Machine Company · 1978
- Method and apparatus for controllably positioning a hydraulic actuator18US 5,615,593 AMcDonnell Douglas Corporation · 1997
- Dual motor dual concentric valve17US 7,828,245 B2Bell Helicopter Textron Inc. · 2010
- Redundant flow control for hydraulic actuator systems16US 6,981,439 B2HR Textron, Inc. · 2006