F15B 2211/30535
The pressure compensating valve is arranged between pressure source and directional control
Official title: the pressure compensating valve is arranged between pressure source and directional control valve
F15B2211/30535 (The pressure compensating valve is arranged between pressure source and directional control) appears on 304 US grants and 159 published applications in this corpus.
Search patents in F15B- Granted patents
- 304
- Published applications
- 159
- Assignees
- 105
- Inventors
- 384
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 5 | 0 |
| 1978 | 10 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 13 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 2 |
| 2003 | 5 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 4 |
| 2006 | 3 | 13 |
| 2007 | 7 | 7 |
| 2008 | 4 | 5 |
| 2009 | 2 | 12 |
| 2010 | 3 | 7 |
| 2011 | 12 | 2 |
| 2012 | 2 | 5 |
| 2013 | 5 | 4 |
| 2014 | 4 | 3 |
| 2015 | 3 | 15 |
| 2016 | 5 | 7 |
| 2017 | 10 | 6 |
| 2018 | 8 | 10 |
| 2019 | 11 | 6 |
| 2020 | 7 | 5 |
| 2021 | 10 | 13 |
| 2022 | 8 | 6 |
| 2023 | 5 | 4 |
| 2024 | 5 | 11 |
| 2025 | 13 | 9 |
| 2026 | 6 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve section and hydraulic valve assembly22 Sep 2026US 12,742,463 B2HAWE Hydraulik SE
- Hybrid electro-hydraulic load sensing system and control method thereof15 Sep 2026US 12,736,067 B2Chongqing University
- Volume follow supply9 Jun 2026US 12,650,135 B2Hydac Fluidtechnik GmbH
- Calibration system in hydraulic system3 Feb 2026US 12,540,634 B2Caterpillar SARL
- System and method for controlling hydraulic fluid flow within a work vehicle13 Jan 2026US 12,523,014 B2CNH Industrial America LLC
- Valve section and hydraulic valve assembly1 Jan 2026US 2026/0002550 A1HAWE Hydraulik SE
- Volume Follow Supply4 Dec 2025US 2025/0369458 A1Hydac Fluidtechnik GmbH
- Hybrid electro-hydraulic load sensing system and control method thereof13 Nov 2025US 2025/0347299 A1Chongqing University
- System and method for controlling hydraulic fluid flow within a work vehicle9 Oct 2025US 2025/0314046 A1CNH Industrial America LLC
- Hydraulic drive device19 Jun 2025US 2025/0198428 A1Kawasaki Jukogyo Kabushiki Kaisha
Most cited
By later US patents
- Control system for load-sensing hydraulic drive circuit65US 4,967,557 AHitachi Construction Machinery Co., Ltd. · 1990
- Multiple consumer hydraulic mechanisms60US 4,617,854 ALinde Aktiengesellschaft · 1986
- Dual-pump, flow-isolated hydraulic circuit for an agricultural tractor60US 5,918,558 ACase Corporation · 1999
- Control for load sharing pumps49US 4,345,436 ACaterpillar Tractor Co. · 1982
- Series - parallel selector for steering and implement47US 4,343,151 ACaterpillar Tractor Co. · 1982