F15B 2211/6652
Control of the pressure source
Official title: Control of the pressure source, e.g. control of the swash plate angle
F15B2211/6652 (Control of the pressure source) appears on 438 US grants and 473 published applications in this corpus.
Search patents in F15B- Granted patents
- 438
- Published applications
- 473
- Assignees
- 139
- Inventors
- 879
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 1 |
| 2002 | 4 | 0 |
| 2003 | 1 | 7 |
| 2004 | 4 | 2 |
| 2005 | 3 | 4 |
| 2006 | 3 | 6 |
| 2007 | 3 | 5 |
| 2008 | 2 | 8 |
| 2009 | 6 | 8 |
| 2010 | 6 | 8 |
| 2011 | 6 | 10 |
| 2012 | 6 | 8 |
| 2013 | 11 | 19 |
| 2014 | 6 | 13 |
| 2015 | 12 | 31 |
| 2016 | 13 | 25 |
| 2017 | 30 | 34 |
| 2018 | 18 | 31 |
| 2019 | 42 | 27 |
| 2020 | 28 | 22 |
| 2021 | 40 | 42 |
| 2022 | 31 | 40 |
| 2023 | 24 | 38 |
| 2024 | 41 | 41 |
| 2025 | 41 | 25 |
| 2026 | 18 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Volume follow supply9 Jun 2026US 12,650,135 B2Hydac Fluidtechnik GmbH
- Hydraulic drive device9 Jun 2026US 12,650,136 B2Kawasaki Jukogyo Kabushiki Kaisha
- Hydraulic system5 May 2026US 12,618,467 B2Kawasaki Jukogyo Kabushiki Kaisha
- Hydraulic system for work machine, work machine, and method for controlling hydraulic system28 Apr 2026US 12,612,757 B2Komatsu Ltd.
- Automatic pressure release14 Apr 2026US 12,601,149 B2Caterpillar Work Tools B. V.
- Hauling Vehicle27 Aug 2026US 2026/0249901 A1Hitachi Construction Machinery Co., Ltd.
- Hydraulic system management method for machine control13 Aug 2026US 2026/0234895 A1Deere & Company
- Method Of Adjusting Relief Pressure Of Relief Valve For Swing Motor13 Aug 2026US 2026/0234899 A1Caterpillar SARL
- Construction machine9 Jul 2026US 2026/0193869 A1Hitachi Construction Machinery Co., Ltd.
- Hydraulic System having a Conditioning Circuit25 Jun 2026US 2026/0177085 A1Robert Bosch GmbH
Most cited
By later US patents
- Hydraulic system with cross function regeneration90US 6,502,393 B1HUSCO International, Inc. · 2003
- Control system for automatically controlling actuators of an excavator57US 5,361,211 ASamsung Heavy Industries Co., Ltd. · 1994
- Clutched hydraulic system for a refuse vehicle56US 9,494,170 B2Oshkosh Corporation · 2016
- Hydraulic control circuit in a hydraulic excavator52US 5,970,709 AKabushiki Kaisha Kobe Seiko Sho · 1999
- Control system for hydraulic circuit apparatus50US 4,586,330 AHitachi Construction Machinery Co., Ltd. · 1986