F04F 5/12
Of multi-stage type
Official title: of multi-stage type
F04F5/12 (Of multi-stage type) appears on 13 US grants and 13 published applications in this corpus.
Search patents in F04F- Granted patents
- 13
- Published applications
- 13
- Assignees
- 11
- Inventors
- 27
- Latest grant
- 5 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 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 | 1 |
| 2012 | 1 | 2 |
| 2013 | 3 | 0 |
| 2014 | 1 | 3 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Horizontal wellbore separation system and method5 Sep 2023US 11,746,631 B2Cleantek Industries Inc.
- Systems and methods for killing wells equipped with jet pumps16 Feb 2021US 10,920,547 B2Hansen Downhole Pump Solutions A.S.
- Pressure washers including jet pumps19 May 2020US 10,654,054 B2Briggs & Stratton Corporation
- Controllable constriction device for the throat of a venturi channel for introducing a liquid additive into a stream of main liquid5 Feb 2019US 10,197,071 B2Dosatron International
- Swimming system current generator2 Jan 2018US 9,855,479 B2Watkins Manufacturing Corporation
- Horizontal wellbore separation system and method14 Jan 2021US 2021/0010354 A1Raise Production Inc.
- Horizontal wellbore pump system and method24 Dec 2020US 2020/0399998 A1Raise Production Inc.
- Systems and methods for killing wells equipped with jet pumps16 Apr 2020US 2020/0115999 A1Hansen Downhole Pump Solutions A.S.
- Swimming System Current Generator3 Aug 2017US 2017/0216697 A1Watkins Manufacturing Corporation
- Segmented fish pump system5 Jan 2017US 2017/0000094 A1
Most cited
By later US patents
- System and method of utilizing an electric submergible pumping system in the production of high gas to liquid ratio fluids83US 6,357,530 B1Camco International Inc. · 2002
- Pressure washers including jet pumps13US 8,814,531 B2Briggs & Stratton Corporation · 2014
- Variable flow rate system for hydrokinetic amplifier11US 4,781,537 AHelios Research Corp. · 1988
- Swimming system current generator8US 9,855,479 B2Watkins Manufacturing Corporation · 2018
- Heat-generating jet injection5US 8,104,745 B12012