F15B 18/00
Parallel arrangements of independent servomotor systems
F15B18/00 (Parallel arrangements of independent servomotor systems) appears on 104 US grants and 74 published applications in this corpus.
Search patents in F15B- Granted patents
- 104
- Published applications
- 74
- Assignees
- 67
- Inventors
- 215
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 11 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 3 |
| 2006 | 2 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 2 |
| 2013 | 3 | 3 |
| 2014 | 0 | 2 |
| 2015 | 4 | 9 |
| 2016 | 4 | 5 |
| 2017 | 7 | 5 |
| 2018 | 5 | 7 |
| 2019 | 4 | 2 |
| 2020 | 2 | 4 |
| 2021 | 4 | 7 |
| 2022 | 6 | 5 |
| 2023 | 2 | 2 |
| 2024 | 7 | 2 |
| 2025 | 3 | 3 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual-parallel actuator piston interface6 Jan 2026US 12,516,686 B2Woodward, Inc.
- Hydraulic force fight mitigation7 Oct 2025US 12,435,740 B2Woodward, Inc.
- Fluid system with multi-mode transfer valve1 Jul 2025US 12,345,280 B2Rtx Corporation
- Pipeline isolation tool, assembly and method28 Jan 2025US 12,209,698 B2Stats (UK) Limited
- Working machine5 Nov 2024US 12,134,877 B2Kubota Corporation
- Servo valve11 Jun 2026US 2026/0160345 A1Microtecnica S.R.L.
- Transfer valve with dual authority control porting7 May 2026US 2026/0126060 A1Hamilton Sundstrand Corporation
- Dual-Parallel Actuator Piston Interface2 Apr 2026US 2026/0092611 A1
- Hydraulic force fight mitigation8 Jan 2026US 2026/0009408 A1Woodward, Inc.
- Direct drive valve20 Mar 2025US 2025/0092960 A1Microtecnica S.R.L.
Most cited
By later US patents
- Dynamic activation of pumps of a fluid power system166US 10,040,541 B2The Boeing Company · 2018
- Load-adaptive hybrid actuator system and method for actuating control surfaces73US 5,074,495 AThe Boeing Company · 1991
- System for servo-controlling an aircraft flight control member43US 5,600,220 ALucas France S.A. · 1997
- Hydraulic actuating arrangements33US 3,992,979 AJoseph Lucas (Industries) Limited · 1976
- Augmenting flight control surface actuation system and method33US 6,796,526 B2The Boeing Company · 2004