F15B 11/055
By adjusting the pump output or bypass
Official title: {by adjusting the pump output or bypass (F15B11/165 takes precedence)}
F15B11/055 (By adjusting the pump output or bypass) appears on 98 US grants and 63 published applications in this corpus.
Search patents in F15B- Granted patents
- 98
- Published applications
- 63
- Assignees
- 67
- Inventors
- 170
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 8 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 3 |
| 2006 | 2 | 3 |
| 2007 | 2 | 3 |
| 2008 | 2 | 4 |
| 2009 | 2 | 2 |
| 2010 | 2 | 1 |
| 2011 | 1 | 6 |
| 2012 | 1 | 6 |
| 2013 | 3 | 3 |
| 2014 | 5 | 1 |
| 2015 | 3 | 2 |
| 2016 | 0 | 0 |
| 2017 | 3 | 3 |
| 2018 | 1 | 4 |
| 2019 | 3 | 1 |
| 2020 | 3 | 5 |
| 2021 | 2 | 3 |
| 2022 | 6 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 5 |
| 2025 | 5 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic system for working machine3 Mar 2026US 12,565,759 B2Kubota Corporation
- Floating control system for fixed displacement pump system24 Feb 2026US 12,560,183 B2Hunan Sinoboom Intelligent Equipment Co., Ltd.
- Pressure-compensation hydraulic pump, rotation speed control system and control method, and construction machinery6 Jan 2026US 12,516,683 B2Zoomlion Earthmoving Machinery Co., Ltd.
- Open centre hydraulic distributor and power transmission system for transmitting to users of an operating machine7 Oct 2025US 12,435,739 B2Bucher Hydraulics AG
- Aerial work platform and floating control system thereof24 Jun 2025US 12,338,109 B2Hunan Sinoboom Intelligent Equipment Co., Ltd.
- An aerial work platform and floating control system thereof20 Mar 2025US 2025/0091849 A1Hunan Sinoboom Intelligent Equipment Co., Ltd.
- Floating control system for fixed displacement pump system30 Jan 2025US 2025/0035133 A1Hunan Sinoboom Intelligent Equipment Co., Ltd.
- Control method for controlling retraction of boom, mechanical device and storage medium17 Oct 2024US 2024/0343530 A1Hunan Sinoboom Intelligent Equipment Co., Ltd.
- Open centre hydraulic distributor and power transmission system for transmitting to users of an operating machine26 Sep 2024US 2024/0318670 A1Bucher Hydraulics AG
- System and methods for cycle time management15 Feb 2024US 2024/0052596 A1Doosan Bobcat North America, Inc.
Most cited
By later US patents
- Load sensing circuit of load compensated direction control valve23US 4,747,335 ACaterpillar Inc. · 1988
- Control device for working machine23US 6,981,371 B2Kobelco Construction Machinery Co., Ltd. · 2006
- Load sensing control for hydraulic system20US 4,199,942 AEaton Corporation · 1980
- Displacement of variable displacement pump controlled by load sensing device having two settings for low and high speed operation of an actuator18US 5,085,051 AHitachi Construction Machinery Co., Ltd. · 1992
- Bi-directional flow control valve17US 6,167,906 AHydraForce, Inc. · 2001