F15B 11/168
With at least one load sense pressure being derived from a work
Official title: {with at least one load sense pressure being derived from a work port load pressure but not being the work port load pressure itself}
F15B11/168 (With at least one load sense pressure being derived from a work) appears on 34 US grants and 21 published applications in this corpus.
Search patents in F15B- Granted patents
- 34
- Published applications
- 21
- Assignees
- 20
- Inventors
- 78
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 3 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Load-controlled hydraulic supply for an attachment attached to an agricultural tractor8 Jul 2025US 12,352,292 B2Deere & Company
- Hydraulic system for working machine27 May 2025US 12,312,772 B2Kubota Corporation
- Hydraulic system for working machine12 Dec 2023US 11,840,825 B2Kubota Corporation
- Hydraulic arrangement for hybrid priority valve21 Nov 2023US 11,820,445 B2CNH Industrial America LLC
- Load sensing type hydraulic system with hydraulic adjustment device23 Aug 2022US 11,421,796 B2Walvoil S.P.A.
- Arrangement for operating a load-controlled hydraulic system of an agricultural tractor2 Jan 2025US 2025/0003430 A1Deere & Company
- Hydraulic system for working machine22 Feb 2024US 2024/0060271 A1Kubota Corporation
- Load-controlled hydraulic supply for an attachment attached to an agricultural tractor18 Jan 2024US 2024/0018979 A1Deere & Company
- Hydraulic system for working machine16 Feb 2023US 2023/0049370 A1Kubota Corporation
- Hydraulic arrangement for hybrid priority valve30 Sep 2021US 2021/0300466 A1CNH Industrial America LLC
Most cited
By later US patents
- Pressure compensating hydraulic control system41US 5,579,642 AHUSCO International, Inc. · 1996
- Load independent valve control for a plurality of hydraulic users32US 5,138,837 AMannesmann Rexroth GmbH · 1992
- Hydraulic control valve system with split pressure compensator26US 5,791,142 AHUSCO International, Inc. · 1998
- Hydraulic control valve system with load sensing priority21US 5,950,429 AHUSCO International, Inc. · 1999
- Hydraulic drive system20US 5,873,245 AHitachi Construction Machinery Co., Ltd. · 1999