F15B 11/0445
With counterbalance valves
Official title: {with counterbalance valves, e.g. to prevent overrunning or for braking}
F15B11/0445 (With counterbalance valves) appears on 177 US grants and 93 published applications in this corpus.
Search patents in F15B- Granted patents
- 177
- Published applications
- 93
- Assignees
- 91
- Inventors
- 237
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 10 | 0 |
| 1979 | 7 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 9 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 7 | 7 |
| 2004 | 1 | 2 |
| 2005 | 6 | 7 |
| 2006 | 6 | 8 |
| 2007 | 3 | 2 |
| 2008 | 6 | 6 |
| 2009 | 5 | 1 |
| 2010 | 3 | 6 |
| 2011 | 0 | 1 |
| 2012 | 1 | 3 |
| 2013 | 3 | 4 |
| 2014 | 3 | 5 |
| 2015 | 2 | 3 |
| 2016 | 5 | 4 |
| 2017 | 4 | 4 |
| 2018 | 4 | 3 |
| 2019 | 7 | 6 |
| 2020 | 4 | 6 |
| 2021 | 7 | 5 |
| 2022 | 4 | 1 |
| 2023 | 2 | 2 |
| 2024 | 3 | 3 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Movement control device with double balancing21 Apr 2026US 12,607,206 B2Manitou Italia S.R.L.
- Adjustable load pressure compensation balancing system, end cover and counterbalance valve26 Aug 2025US 12,398,735 B2Jiangsu Advanced Construction Machinery Innovation Center Ltd.
- Counter pressure valve arrangement10 Jun 2025US 12,326,741 B2Parker Hannifin EMEA S.à.r.l.
- Hydraulic motor unit4 Feb 2025US 12,215,484 B2Nabtesco Corporation
- Hydraulic system for battery-powered utility vehicles22 Oct 2024US 12,123,173 B1Vermeer Manufacturing Company
- Displacement Power Controllers and Applications5 Mar 2026US 2026/0063150 A1Perisseuma Technologies LLC
- Movement control device with double balancing1 May 2025US 2025/0137470 A1Manitou Italia S.R.L.
- Work vehicle20 Mar 2025US 2025/0091499 A1Kubota Corporation
- Hydraulic motor unit13 Jun 2024US 2024/0191475 A1Nabtesco Corporation
- Adjustable load pressure compensation balancing system, end cover and counterbalance valve11 Apr 2024US 2024/0117824 A1Jiangsu Advanced Construction Machinery Innovation Center Ltd.
Most cited
By later US patents
- Fluid power distribution and control system111US 10,161,423 B2Sauer-Danfoss ApS · 2018
- Hydraulic system, manifold and volumetric compensator73US 6,519,939 B1M-Mac Actuators, Inc. · 2003
- Fluid system with flow compensated torque control45US 4,481,770 ACaterpillar Tractor Co. · 1984
- Regulated pressure supply for a variable-displacement reversible hydraulic motor42US 6,922,991 B2Moog Inc. · 2005
- Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve41US 7,487,707 B2HUSCO International, Inc. · 2009