F15B 2211/50581
Using counterbalance valves
Official title: using counterbalance valves
F15B2211/50581 (Using counterbalance valves) appears on 192 US grants and 165 published applications in this corpus.
Search patents in F15B- Granted patents
- 192
- Published applications
- 165
- Assignees
- 117
- Inventors
- 364
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 7 | 3 |
| 2003 | 9 | 12 |
| 2004 | 5 | 7 |
| 2005 | 10 | 5 |
| 2006 | 4 | 8 |
| 2007 | 4 | 6 |
| 2008 | 2 | 6 |
| 2009 | 7 | 6 |
| 2010 | 4 | 9 |
| 2011 | 6 | 8 |
| 2012 | 4 | 7 |
| 2013 | 8 | 6 |
| 2014 | 6 | 2 |
| 2015 | 2 | 6 |
| 2016 | 2 | 6 |
| 2017 | 3 | 3 |
| 2018 | 4 | 8 |
| 2019 | 9 | 9 |
| 2020 | 13 | 14 |
| 2021 | 15 | 9 |
| 2022 | 9 | 7 |
| 2023 | 4 | 9 |
| 2024 | 7 | 3 |
| 2025 | 5 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Movement control device with double balancing21 Apr 2026US 12,607,206 B2Manitou Italia S.R.L.
- Load-handling vehicle3 Feb 2026US 12,540,062 B2Manitou Bf
- Fork leveling system and method, and telescopic boom forklift9 Sep 2025US 12,410,046 B2Sany Marine Heavy Industry Co., Ltd.
- Adjustable load pressure compensation balancing system, end cover and counterbalance valve26 Aug 2025US 12,398,735 B2Jiangsu Advanced Construction Machinery Innovation Center Ltd.
- Hydraulic regeneration circuit with multiple speeds5 Aug 2025US 12,378,981 B2
- 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
- Apparatus6 Feb 2025US 2025/0041767 A1Hydac Systems & Services GmbH
- Variable Displacement Power Controllers and Applications14 Nov 2024US 2024/0376913 A1Perisseuma Technologies LLC
Most cited
By later US patents
- Fluid power distribution and control system111US 10,161,423 B2Sauer-Danfoss ApS · 2018
- Systems and methods for energy storage and recovery using compressed gas96US 7,832,207 B2SustainX, Inc. · 2010
- System and method for controlling an independent metering valve77US 5,960,695 ACaterpillar Inc. · 1999
- Hydraulic system, manifold and volumetric compensator73US 6,519,939 B1M-Mac Actuators, Inc. · 2003
- Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression73US 7,874,155 B2SustainX, Inc. · 2011