F04B 9/1056
With fluid-actuated inlet or outlet valve
Official title: {with fluid-actuated inlet or outlet valve (mechanically controlled F04B7/00)}
F04B9/1056 (With fluid-actuated inlet or outlet valve) appears on 21 US grants and 17 published applications in this corpus.
Search patents in F04B- Granted patents
- 21
- Published applications
- 17
- Assignees
- 11
- Inventors
- 30
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 5 |
| 2019 | 3 | 1 |
| 2020 | 2 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Direct control variable displacement pump with dual-function high-pressure relief valve- pressure regulating valve26 Aug 2025US 12,398,682 B1Hamilton Sundstrand Corporation
- Hydraulic pumping system29 Jul 2025US 12,372,080 B2
- Hydraulic pumping system21 Mar 2023US 11,608,824 B2
- Pressure amplifier13 Jul 2021US 11,060,532 B2Pistonpower Aps
- Hydraulic pressure intensifier16 Feb 2021US 10,920,796 B2Pistonpower Aps
- Direct control variable displacement pump with dual-function high-pressure relief valve-pressure regulating valve28 Aug 2025US 2025/0270961 A1Hamilton Sundstrand Corporation
- Hydraulic pumping system8 Feb 2024US 2024/0044326 A1
- Hydraulic pumping system16 Jul 2020US 2020/0224652 A1
- Metering Pump and Metering System23 May 2019US 2019/0154017 A1BASF SE
- Hydraulic drive system for a linearly actuated hydraulic piston pump25 Oct 2018US 2018/0306173 A1Caterpillar Inc.
Most cited
By later US patents
- Water-powered sump pump47US 6,527,518 B22003
- Apparatus for reconstituting a concentrate7US 4,391,291 A1983
- Fluid intensifier7US 5,484,269 AMoog Inc. · 1996
- Coaxial pumping apparatus with internal power fluid column7US 8,454,325 B22013
- Pressure booster with double-seat valve7US 8,613,602 B2Scanwill Fluidpower APS · 2013