F15B 2211/20576
With multiple pumps
Official title: with multiple pumps
F15B2211/20576 (With multiple pumps) appears on 1,188 US grants and 1,123 published applications in this corpus.
Search patents in F15B- Granted patents
- 1,188
- Published applications
- 1,123
- Assignees
- 435
- Inventors
- 2,055
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 13 | 0 |
| 1978 | 11 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 9 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 10 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 17 | 0 |
| 1995 | 7 | 0 |
| 1996 | 14 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 13 | 0 |
| 2000 | 13 | 0 |
| 2001 | 21 | 4 |
| 2002 | 17 | 13 |
| 2003 | 17 | 16 |
| 2004 | 12 | 21 |
| 2005 | 20 | 23 |
| 2006 | 16 | 17 |
| 2007 | 17 | 36 |
| 2008 | 15 | 30 |
| 2009 | 31 | 40 |
| 2010 | 17 | 23 |
| 2011 | 17 | 26 |
| 2012 | 15 | 33 |
| 2013 | 31 | 52 |
| 2014 | 27 | 51 |
| 2015 | 39 | 81 |
| 2016 | 43 | 71 |
| 2017 | 71 | 60 |
| 2018 | 60 | 72 |
| 2019 | 77 | 72 |
| 2020 | 79 | 58 |
| 2021 | 81 | 73 |
| 2022 | 57 | 67 |
| 2023 | 49 | 55 |
| 2024 | 58 | 48 |
| 2025 | 54 | 49 |
| 2026 | 37 | 32 |
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
- Work machine accessory motor load protection8 Sep 2026US 12,729,699 B2Caterpillar Inc.
- Method and system for a flow-isolated valve arrangement and a three-chamber cylinder hydraulic architecture1 Sep 2026US 12,723,603 B2Purdue Research Foundation
- Hydraulic power steering system25 Aug 2026US 12,715,501 B2Hydac New Technologies GmbH
- Actuator assembly for a heavy construction machine25 Aug 2026US 12,716,429 B2Wipro Enterprises Pvt Ltd
- Hydraulic system for a refuse vehicle1 Oct 2026US 2026/0296342 A1Oshkosh Corporation
- Route planning based control of a refuse vehicle hydraulic system3 Sep 2026US 2026/0257638 A1Oshkosh Corporation
- Hauling Vehicle27 Aug 2026US 2026/0249901 A1Hitachi Construction Machinery Co., Ltd.
- Drive mechanism and tilt-trim device27 Aug 2026US 2026/0249968 A1Astemo, Ltd.
- Transport vehicle20 Aug 2026US 2026/0241846 A1Hitachi Construction Machinery Co., Ltd.
Most cited
By later US patents
- Dynamic activation of pumps of a fluid power system166US 10,040,541 B2The Boeing Company · 2018
- Fluid power distribution and control system111US 10,161,423 B2Sauer-Danfoss ApS · 2018
- Accumulator engine103US 5,579,640 AThe United States of America as represented by the Administrator of the Environmental Protection Agency · 1996
- Cartridge valve having solenoid bypass and integral relief valve94US 5,992,450 AEaton Corporation · 1999
- Method and device for attenuating the motion of hydraulic cylinders of mobile work machinery79US 7,318,292 B2Liebherr-France SAS · 2008