F04B 11/0058
With piston speed control
Official title: {with piston speed control}
F04B11/0058 (With piston speed control) appears on 99 US grants and 71 published applications in this corpus.
Search patents in F04B- Granted patents
- 99
- Published applications
- 71
- Assignees
- 71
- Inventors
- 185
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 5 |
| 2006 | 4 | 1 |
| 2007 | 3 | 0 |
| 2008 | 2 | 3 |
| 2009 | 0 | 0 |
| 2010 | 0 | 7 |
| 2011 | 1 | 4 |
| 2012 | 1 | 3 |
| 2013 | 1 | 2 |
| 2014 | 2 | 2 |
| 2015 | 5 | 3 |
| 2016 | 2 | 3 |
| 2017 | 4 | 5 |
| 2018 | 3 | 6 |
| 2019 | 8 | 8 |
| 2020 | 3 | 3 |
| 2021 | 3 | 5 |
| 2022 | 4 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 2 |
| 2025 | 2 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Inline fluid dispense pump assembly17 Feb 2026US 12,553,422 B2Fluid Metering, Inc.
- Liquid delivery pump10 Feb 2026US 12,546,299 B2Hitachi High-Tech Corporation
- Liquid feeding pump and liquid feeding method14 Oct 2025US 12,442,363 B2Hitachi High-Tech Corporation
- Tube pump11 Feb 2025US 12,221,956 B2Surpass Industry Co., Ltd.
- Device for controlling a piston pump unit for liquid chromatography16 Apr 2024US 11,959,467 B2Dionex Softron GmbH
- System of pressure intensifier units, method of controlling same and relevant computer program, and press apparatus comprising said system28 Aug 2025US 2025/0269620 A1Quintus Technologies AB
- Hydraulic system for a vehicle, such as an aircraft13 Mar 2025US 2025/0084842 A1Airbus Operations GmbH
- Liquid delivery pump30 Jan 2025US 2025/0035096 A1Hitachi High-Tech Corporation
- Device for controlling a piston pump unit for liquid chromatography22 Aug 2024US 2024/0280091 A1Dionex Softron GmbH
- Inline fluid dispense pump assembly29 Feb 2024US 2024/0068458 A1Fluid Metering, Inc.
Most cited
By later US patents
- Reducing fluid pressure spikes in a pumping system221US 10,393,108 B2Schlumberger Technology Corporation · 2019
- Automatic pump sequencing and flow rate modulating control system216US 4,269,569 A1981
- Pumping apparatus for delivering liquid at high pressure112US 4,883,409 A1989
- Pulsationless duplex plunger pump and control method thereof86US 4,808,077 AHitachi, Ltd. · 1989
- Pulsation free pump70US 5,993,174 ANikkiso Co., Ltd. · 1999