F15B 2211/41509
Being connected to a pressure source and a directional control valve
Official title: being connected to a pressure source and a directional control valve
F15B2211/41509 (Being connected to a pressure source and a directional control valve) appears on 239 US grants and 218 published applications in this corpus.
Search patents in F15B- Granted patents
- 239
- Published applications
- 218
- Assignees
- 139
- Inventors
- 575
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 10 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 2 |
| 2002 | 2 | 2 |
| 2003 | 4 | 4 |
| 2004 | 4 | 3 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 6 |
| 2008 | 1 | 2 |
| 2009 | 4 | 4 |
| 2010 | 2 | 9 |
| 2011 | 5 | 12 |
| 2012 | 5 | 6 |
| 2013 | 9 | 10 |
| 2014 | 7 | 10 |
| 2015 | 1 | 18 |
| 2016 | 7 | 6 |
| 2017 | 12 | 10 |
| 2018 | 7 | 11 |
| 2019 | 14 | 8 |
| 2020 | 11 | 11 |
| 2021 | 11 | 12 |
| 2022 | 14 | 13 |
| 2023 | 10 | 11 |
| 2024 | 14 | 18 |
| 2025 | 18 | 18 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve section and hydraulic valve assembly22 Sep 2026US 12,742,463 B2HAWE Hydraulik SE
- Hydraulic power steering system25 Aug 2026US 12,715,501 B2Hydac New Technologies GmbH
- Hydraulic drive apparatus21 Jul 2026US 12,687,182 B2Kawasaki Jukogyo Kabushiki Kaisha
- Aerial work platform, and method for controlling an aerial work platform2 Jun 2026US 12,644,475 B2Haulotte Group
- Hydraulic control system in working machine21 Apr 2026US 12,606,989 B2Caterpillar SARL
- Work Machine13 Aug 2026US 2026/0234907 A1Hitachi Construction Machinery Co., Ltd.
- Three servovalve thrust reverser actuator system23 Jul 2026US 2026/0210311 A1
- Crane upper and lower structure interlocking system, and crane9 Jul 2026US 2026/0193063 A1Xuzhou Heavy Machinery Co., Ltd.
- Hybrid architecture for smart power management on off-highway machines18 Jun 2026US 2026/0168211 A1Deere & Company
- Displacement Power Controllers and Applications5 Mar 2026US 2026/0063150 A1Perisseuma Technologies LLC
Most cited
By later US patents
- Systems and methods for energy storage and recovery using compressed gas96US 7,832,207 B2SustainX, Inc. · 2010
- Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression73US 7,874,155 B2SustainX, Inc. · 2011
- Hydraulic system for supplying hydraulic fluid to a hydraulically operated device alternately at pressures of different value71US 4,142,368 AWelko Industriale S.p.A. · 1979
- Systems and methods for energy storage and recovery using compressed gas63US 7,900,444 B1SustainX, Inc. · 2011
- Pressurized fluid supply system45US 6,209,322 B1Komatsu Ltd. · 2001