F04B 9/1174
With fluid-actuated inlet or outlet valve
Official title: {with fluid-actuated inlet or outlet valve (mechanically controlled F04B7/00)}
F04B9/1174 (With fluid-actuated inlet or outlet valve) appears on 14 US grants and 5 published applications in this corpus.
Search patents in F04B- Granted patents
- 14
- Published applications
- 5
- Assignees
- 9
- Inventors
- 18
- Latest grant
- 29 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 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 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Fluid injection or suction device29 Apr 2025US 12,286,984 B2Fuji Filter Manufacturing Co., Ltd.
- Hydraulically-driven double-acting mud pump7 Apr 2020US 10,612,531 B2Huangshan Huirun Machinery Co., Ltd.
- Method for using a hydraulic amplifier pump in ultrahigh pressure liquid chromatography25 Dec 2007US 7,311,502 B2Waters Investments Limited
- Hydraulic amplifier pump for use in ultrahigh pressure liquid chromatography30 Mar 2004US 6,712,587 B2Waters Investments Limited
- Water-powered sump pump4 Mar 2003US 6,527,518 B2
- Fluid injection or suction device22 Feb 2024US 2024/0060518 A1Fuji Filter Manufacturing Co., Ltd.
- Hydraulically-driven double-acting mud pump18 Oct 2018US 2018/0298887 A1Huangshan Huirun Machinery Co., Ltd.
- Method for using a hydraulic amplifier pump in ultrahigh pressure liquid chromatography2 Sep 2004US 2004/0170510 A1Waters Investments Limited
- Hydraulic amplifier pump for use in ultrahigh pressure liquid chromatography26 Jun 2003US 2003/0118459 A1Waters Investments Limited
- Water-powered sump pump21 Mar 2002US 2002/0034444 A1
Most cited
By later US patents
- Method and apparatus for compressing gases with a liquid system96US 5,169,295 ATren Fuels, Inc. · 1992
- Method and apparatus for compressing gases with a liquid system70US 5,387,089 ATren Fuels, Inc. · 1995
- Water-powered sump pump47US 6,527,518 B22003
- Oscillating dual bladder balanced pressure proportioning pump system26US 5,957,153 AFrey Turbodynamics, Ltd. · 1999
- Hydraulic amplifier pump for use in ultrahigh pressure liquid chromatography26US 6,712,587 B2Waters Investments Limited · 2004