F04B 2203/0903
Position of the driving piston
F04B2203/0903 (Position of the driving piston) appears on 26 US grants and 24 published applications in this corpus.
Search patents in F04B- Granted patents
- 26
- Published applications
- 24
- Assignees
- 28
- Inventors
- 57
- Latest grant
- 1 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 0 | 0 |
| 2009 | 2 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 5 |
| 2018 | 2 | 3 |
| 2019 | 2 | 1 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Non-pulsating pump and method of controlling the same1 Nov 2022US 11,486,374 B2Nikkiso Co., Ltd.
- Ultra high pressure pump24 Sep 2019US 10,422,333 B2Quantum Servo Pumping Technologies Pty Ltd
- Lift apparatus for driving a downhole reciprocating pump16 Jul 2019US 10,352,138 B2I-Jack Technologies Incorporated
- Method and system for intensifying slurry pressure27 Nov 2018US 10,138,877 B2Vector Technologies LLC
- Lift apparatus for driving a downhole reciprocating pump11 Sep 2018US 10,072,487 B2I-Jack Technologies Incorporated
- Alternating tangential flow pumping method23 Jun 2022US 2022/0193582 A1Repligen Corporation
- Non-pulsating pump and method of controlling the same28 Jan 2021US 2021/0025375 A1Nikkiso Co., Ltd.
- Thick Stock Valve11 Jun 2020US 2020/0182230 A1Putzmeister Engineering GmbH
- Pump chamber position indicator16 Apr 2020US 2020/0116142 A1Hydril USA Distribution LLC
- Adaptive control system and methods for well service pump systems31 Oct 2019US 2019/0331100 A1
Most cited
By later US patents
- Adaptive fluid motor control51US 5,794,442 A1998
- Sludge pump with monitoring system38US 5,388,965 AFriedrich Wilhelm Schwing GmbH · 1995
- Diaphragm pump and device for controlling same36US 6,554,578 B1Bran & Luebbe GmbH · 2003
- Regenerative adaptive fluid control29US 5,794,439 A1998
- Fluid intensifier pump system23US 6,558,134 B2Imation Corp. · 2003