F15B 2211/20592
Combinations of pumps for supplying high and low pressure
F15B2211/20592 (Combinations of pumps for supplying high and low pressure) appears on 94 US grants and 88 published applications in this corpus.
Search patents in F15B- Granted patents
- 94
- Published applications
- 88
- Assignees
- 68
- Inventors
- 225
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 3 |
| 2006 | 2 | 1 |
| 2007 | 1 | 9 |
| 2008 | 4 | 5 |
| 2009 | 4 | 2 |
| 2010 | 2 | 2 |
| 2011 | 2 | 4 |
| 2012 | 1 | 3 |
| 2013 | 3 | 5 |
| 2014 | 2 | 6 |
| 2015 | 4 | 7 |
| 2016 | 6 | 2 |
| 2017 | 7 | 3 |
| 2018 | 6 | 6 |
| 2019 | 2 | 2 |
| 2020 | 5 | 3 |
| 2021 | 5 | 4 |
| 2022 | 4 | 6 |
| 2023 | 4 | 2 |
| 2024 | 7 | 5 |
| 2025 | 4 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for a flow-isolated valve arrangement and a three-chamber cylinder hydraulic architecture1 Sep 2026US 12,723,603 B2Purdue Research Foundation
- Actuator assembly for a heavy construction machine25 Aug 2026US 12,716,429 B2Wipro Enterprises Pvt Ltd
- Method for actuating a hydraulic device17 Jun 2025US 12,331,830 B2Schaeffler Technologies AG & Co. KG
- Method and system for a flow-isolated valve arrangement and a three-chamber cylinder hydraulic architecture6 May 2025US 12,292,062 B2Purdue Research Foundation
- Construction machine with a hydraulic system11 Feb 2025US 12,221,770 B2XCMG European Research Center GmbH
- Hydraulic System having an Inertia Charging Arrangement25 Jun 2026US 2026/0177086 A1Robert Bosch GmbH
- Oil circuit system, lifting device, electric jack, press, crane, and tire mounting/dismounting and transport apparatus12 Mar 2026US 2026/0070764 A1Snit Hydraulic Co., Ltd.
- Actuator assembly for a heavy construction machine27 Nov 2025US 2025/0361889 A1Wipro Enterprises Pvt Ltd
- Agricultural header float arm position and pressure control system16 Oct 2025US 2025/0318462 A1
- Method and system for a flow-isolated valve arrangement and a three-chamber cylinder hydraulic architecture21 Aug 2025US 2025/0264118 A1Purdue Research Foundation
Most cited
By later US patents
- Clutched hydraulic system for a refuse vehicle56US 9,494,170 B2Oshkosh Corporation · 2016
- Digitally controlled air-over-hydraulic actuator and method50US 4,765,225 A1988
- Hydraulic device22US 5,937,645 ANachi-Fujikoshi Corp. · 1999
- Punch press hydraulic servo device using a rotary valve19US 6,594,992 B1Amada Company, Limited · 2003
- Load sensing control system for hydraulic machine18US 5,285,642 AHitachi Construction Machinery Co., Ltd. · 1994