F15B 2211/31535
Having multiple pressure sources and a single output member
Official title: having multiple pressure sources and a single output member
F15B2211/31535 (Having multiple pressure sources and a single output member) appears on 45 US grants and 56 published applications in this corpus.
Search patents in F15B- Granted patents
- 45
- Published applications
- 56
- Assignees
- 37
- Inventors
- 143
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 2 | 2 |
| 2015 | 2 | 3 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 3 | 8 |
| 2019 | 3 | 10 |
| 2020 | 10 | 7 |
| 2021 | 9 | 6 |
| 2022 | 6 | 2 |
| 2023 | 0 | 4 |
| 2024 | 4 | 3 |
| 2025 | 2 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrohydraulic pitch-control system with a valve pump in a rotating reference frame26 Aug 2025US 12,397,901 B2Safran Aircraft Engines
- Work machine29 Jul 2025US 12,371,881 B2Hitachi Construction Machinery Co., Ltd.
- Fixed displacement hydraulic pump match flow demand control system31 Dec 2024US 12,180,983 B2TEAM Industries, Inc.
- Double-power-supply complex control device8 Oct 2024US 12,110,974 B2CH Creative Co., Ltd.
- Construction machine6 Aug 2024US 12,054,917 B2Hd Hyundai Infracore Co., Ltd.
- Linear actuator assembly and system21 May 2026US 2026/0139694 A1Project Phoenix, LLC
- Agricultural header float arm position and pressure control system16 Oct 2025US 2025/0318462 A1
- Agricultural header float arm position and pressure control system16 Oct 2025US 2025/0318463 A1
- Construction Machine1 May 2025US 2025/0137231 A1Hitachi Construction Machinery Co., Ltd.
- Fixed displacement hydraulic pump match flow demand control system13 Mar 2025US 2025/0084874 A1TEAM Industries, Inc.
Most cited
By later US patents
- Independent load sensing for a vehicle hydraulic system58US 9,145,905 B2Oshkosh Corporation · 2015
- Self-regulated hydraulic control system37US 4,833,971 A1989
- Gas-hydraulic pressure type actuator for pipeline valve13US 4,120,478 AThe Japan Steel Works, Ltd. · 1978
- Working machine6US 10,184,225 B2Hitachi Construction Machinery Co., Ltd. · 2019
- Linear actuator assembly and system6US 10,539,134 B2Project Phoenix, LLC · 2020