F15B 2211/329
Actuated by fluid pressure
Official title: actuated by fluid pressure
F15B2211/329 (Actuated by fluid pressure) appears on 880 US grants and 691 published applications in this corpus.
Search patents in F15B- Granted patents
- 880
- Published applications
- 691
- Assignees
- 325
- Inventors
- 1,513
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 12 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 12 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 13 | 0 |
| 1992 | 11 | 0 |
| 1993 | 12 | 0 |
| 1994 | 11 | 0 |
| 1995 | 13 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 12 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 23 | 4 |
| 2002 | 19 | 13 |
| 2003 | 18 | 19 |
| 2004 | 17 | 21 |
| 2005 | 14 | 13 |
| 2006 | 11 | 18 |
| 2007 | 15 | 23 |
| 2008 | 12 | 20 |
| 2009 | 15 | 19 |
| 2010 | 9 | 18 |
| 2011 | 15 | 16 |
| 2012 | 11 | 11 |
| 2013 | 18 | 16 |
| 2014 | 16 | 19 |
| 2015 | 13 | 28 |
| 2016 | 22 | 21 |
| 2017 | 25 | 23 |
| 2018 | 19 | 30 |
| 2019 | 38 | 44 |
| 2020 | 41 | 66 |
| 2021 | 56 | 46 |
| 2022 | 49 | 52 |
| 2023 | 52 | 48 |
| 2024 | 43 | 52 |
| 2025 | 49 | 39 |
| 2026 | 34 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Construction machine6 Oct 2026US 12,753,569 B2Hitachi Construction Machinery Co., Ltd.
- Fluid controller21 Jul 2026US 12,687,183 B2Kawasaki Jukogyo Kabushiki Kaisha
- System and method for a pilot shifted regeneration valve7 Jul 2026US 12,674,474 B1Custom Truck One Source, Inc.
- Protection for a circuit for controlling the orientation of propeller blades of an aircraft engine7 Jul 2026US 12,674,475 B2Safran Aircraft Engines
- Control device of a pneumatic element23 Jun 2026US 12,663,024 B2Gimatic S.p.A.
- Hauling Vehicle27 Aug 2026US 2026/0249901 A1Hitachi Construction Machinery Co., Ltd.
- Transport vehicle20 Aug 2026US 2026/0241846 A1Hitachi Construction Machinery Co., Ltd.
- Work Machine13 Aug 2026US 2026/0234907 A1Hitachi Construction Machinery Co., Ltd.
- Three servovalve thrust reverser actuator system23 Jul 2026US 2026/0210311 A1
- Bulldozing hydraulic system with bulldozing blade floating function and excavator11 Jun 2026US 2026/0160045 A1Xuzhou XCMG Excavator Machinery Co., Ltd.
Most cited
By later US patents
- Fail-safe actuation system926US 9,239,064 B2Moog Inc. · 2016
- Hydraulic circuit and control system therefor115US 5,138,838 ACaterpillar Inc. · 1992
- Hydraulic control system for downhole tools100US 6,536,530 B2Halliburton Energy Services.Inc. · 2003
- Device and method for regulating fluid flow in a well74US 6,516,888 B1Triangle Equipment AS · 2003
- Variable flow hydraulic system73US 6,029,445 ACase Corporation · 2000