F04B 2203/091
Opening time of the valves
F04B2203/091 (Opening time of the valves) appears on 6 US grants and 3 published applications in this corpus.
Search patents in F04B- Granted patents
- 6
- Published applications
- 3
- Assignees
- 4
- Inventors
- 7
- Latest grant
- 16 Jul 2019
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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 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 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- 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
- Sludge Pump16 Apr 1996US 5,507,624 AFriedrich Wilhelm Schwing GmbH
- Sludge pump with monitoring system14 Feb 1995US 5,388,965 AFriedrich Wilhelm Schwing GmbH
- Lift apparatus for driving a downhole reciprocating pump6 Dec 2018US 2018/0347327 A1I-Jack Technologies Incorporated
- Method and system for intensifying slurry pressure17 May 2018US 2018/0135606 A1Vector Technologies LLC
- Lift apparatus for driving a downhole reciprocating pump9 Nov 2017US 2017/0321526 A1I-Jack Technologies Incorporated
Most cited
By later US patents
- Sludge pump with monitoring system38US 5,388,965 AFriedrich Wilhelm Schwing GmbH · 1995
- Pumping apparatus22US 4,527,954 AHalliburton Company · 1985
- Lift apparatus for driving a downhole reciprocating pump10US 10,072,487 B2I-Jack Technologies Incorporated · 2018
- Sludge Pump10US 5,507,624 AFriedrich Wilhelm Schwing GmbH · 1996
- Method and system for intensifying slurry pressure4US 10,138,877 B2Vector Technologies LLC · 2018