F15B 9/08
Controlled by valves affecting the fluid feed or the fluid outlet of
Official title: controlled by valves affecting the fluid feed or the fluid outlet of the servomotor (F15B9/06 takes precedence)
F15B9/08 (Controlled by valves affecting the fluid feed or the fluid outlet of) appears on 294 US grants and 184 published applications in this corpus.
Search patents in F15B- Granted patents
- 294
- Published applications
- 184
- Assignees
- 204
- Inventors
- 559
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 9 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 2 |
| 2002 | 8 | 4 |
| 2003 | 10 | 8 |
| 2004 | 11 | 17 |
| 2005 | 9 | 7 |
| 2006 | 7 | 5 |
| 2007 | 4 | 2 |
| 2008 | 5 | 2 |
| 2009 | 1 | 5 |
| 2010 | 1 | 13 |
| 2011 | 2 | 9 |
| 2012 | 8 | 3 |
| 2013 | 5 | 7 |
| 2014 | 5 | 12 |
| 2015 | 13 | 11 |
| 2016 | 8 | 8 |
| 2017 | 8 | 4 |
| 2018 | 10 | 12 |
| 2019 | 8 | 12 |
| 2020 | 11 | 8 |
| 2021 | 15 | 9 |
| 2022 | 6 | 4 |
| 2023 | 8 | 4 |
| 2024 | 2 | 7 |
| 2025 | 4 | 2 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control method based on a four-chamber hydraulic cylinder6 Oct 2026US 12,753,780 B2Taiyuan University of Technology
- Multi-channel flow control system15 Sep 2026US 12,736,069 B2Industrial Technology Research Institute
- Electrohydraulic pitch-control system with a valve pump in a rotating reference frame26 Aug 2025US 12,397,901 B2Safran Aircraft Engines
- Universal actuator valve systems and methods thereof24 Jun 2025US 12,338,845 B2
- Braking and regeneration control in a legged robot27 May 2025US 12,311,563 B2Boston Dynamics, Inc.
- Dynamic testing system control valve adapter1 Oct 2026US 2026/0298787 A1Illinois Tool Works Inc.
- Pneumatic control device, process valve assembly and process24 Sep 2026US 2026/0286984 A1Festo AG & Co.
- Remote travel feedback systems and related methods9 Jul 2026US 2026/0194079 A1Fisher Controls International LLC
- Multi-channel flow control system11 Jun 2026US 2026/0160277 A1Industrial Technology Research Institute
- Servo valve11 Jun 2026US 2026/0160345 A1Microtecnica S.R.L.
Most cited
By later US patents
- Force-controlled hydro-elastic actuator139US 6,494,039 B2Massachusetts Institute of Technology · 2002
- Biologically-inspired multi-segmented robot78US 6,532,400 B1Intelligent Inference Systems Corporation · 2003
- Fluid servo and applications57US 8,863,641 B2Isentropic Limited · 2014
- Tractor and towed implement with elevation control system for implement including pressure responsive valve actuator50US 4,637,474 A1987
- Control valve positioners having improved operating characteristics50US 5,950,668 AFisher Controls International LLC · 1999