F15B 2211/6051
Having valve means between output member and the load sensing circuit
Official title: having valve means between output member and the load sensing circuit
F15B2211/6051 (Having valve means between output member and the load sensing circuit) appears on 544 US grants and 279 published applications in this corpus.
Search patents in F15B- Granted patents
- 544
- Published applications
- 279
- Assignees
- 180
- Inventors
- 764
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 15 | 0 |
| 1978 | 10 | 0 |
| 1979 | 13 | 0 |
| 1980 | 13 | 0 |
| 1981 | 10 | 0 |
| 1982 | 11 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 12 | 0 |
| 1988 | 13 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 13 | 0 |
| 1993 | 15 | 0 |
| 1994 | 15 | 0 |
| 1995 | 12 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 12 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 16 | 1 |
| 2002 | 17 | 10 |
| 2003 | 11 | 13 |
| 2004 | 11 | 9 |
| 2005 | 8 | 16 |
| 2006 | 7 | 16 |
| 2007 | 15 | 19 |
| 2008 | 13 | 17 |
| 2009 | 10 | 16 |
| 2010 | 6 | 15 |
| 2011 | 13 | 5 |
| 2012 | 5 | 6 |
| 2013 | 8 | 7 |
| 2014 | 9 | 8 |
| 2015 | 5 | 11 |
| 2016 | 8 | 5 |
| 2017 | 8 | 11 |
| 2018 | 10 | 11 |
| 2019 | 12 | 11 |
| 2020 | 13 | 14 |
| 2021 | 14 | 16 |
| 2022 | 21 | 8 |
| 2023 | 14 | 7 |
| 2024 | 3 | 9 |
| 2025 | 10 | 11 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control method based on a four-chamber hydraulic cylinder6 Oct 2026US 12,753,780 B2Taiyuan University of Technology
- Hydraulic drive apparatus21 Jul 2026US 12,687,182 B2Kawasaki Jukogyo Kabushiki Kaisha
- Volume follow supply9 Jun 2026US 12,650,135 B2Hydac Fluidtechnik GmbH
- Variable relief circuit19 May 2026US 12,631,201 B2HUSCO International, Inc.
- Working machine and control method therefor31 Mar 2026US 12,590,596 B2Kubota Corporation
- System and Method for Controlling a Hydraulic Supply System on a Mobile Machine18 Jun 2026US 2026/0168520 A1AGCO International GmbH
- Working machine26 Mar 2026US 2026/0085495 A1Kubota Corporation
- Open and closed circuit parallel drive system and control method based on a four-chamber hydraulic cylinder19 Feb 2026US 2026/0049622 A1Taiyuan University of Technology
- Valve Assembly for Double-Acting Hoisting Mechanism29 Jan 2026US 2026/0029001 A1Robert Bosch GmbH
- Hydraulic drive apparatus22 Jan 2026US 2026/0022713 A1Kawasaki Jukogyo Kabushiki Kaisha
Most cited
By later US patents
- Fluid power distribution and control system111US 10,161,423 B2Sauer-Danfoss ApS · 2018
- Hydraulic control system for downhole tools100US 6,536,530 B2Halliburton Energy Services.Inc. · 2003
- 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