F04D 9/008
By means in the suction mouth
Official title: {by means in the suction mouth, e.g. foot valves}
F04D9/008 (By means in the suction mouth) appears on 27 US grants and 24 published applications in this corpus.
Search patents in F04D- Granted patents
- 27
- Published applications
- 24
- Assignees
- 19
- Inventors
- 50
- Latest grant
- 16 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 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 | 1 | 0 |
| 1990 | 1 | 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 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 2 | 8 |
| 2008 | 2 | 0 |
| 2009 | 1 | 1 |
| 2010 | 3 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Swimming pool pump with an inlet deflector and variable size impeller16 Aug 2022US 11,415,137 B2
- Gas-lock re-prime shaft passage in submersible well pump and method of re-priming the pump8 Mar 2022US 11,268,516 B2Baker Hughes Holdings LLC
- Sand fallback submersible pump protection apparatus1 Jun 2021US 11,021,931 B1The Cavins Corporation
- Centrifugal pump flow modifier12 Jan 2021US 10,890,353 B2Aspen Pumps Limited
- Water pump with check valve9 Apr 2019US 10,253,897 B2OASE GmbH
- Sand fallback submersible pump protection apparatus27 May 2021US 2021/0156225 A1The Cavins Corporation
- Gas-lock re-prime shaft passage in submersible well pump and method of re-priming the pump21 May 2020US 2020/0158114 A1Baker Hughes, A Ge Company, LLC
- Centrifugal pump flow modifier5 Sep 2019US 2019/0271318 A1Aspen Pumps Limited
- Swimming pool pump with an inlet deflector and variable size impeller5 Sep 2019US 2019/0271320 A1
- Impeller pump14 Jun 2018US 2018/0163727 A1MP Pumps, Inc.
Most cited
By later US patents
- Horizontally oriented gas separator37US 7,270,178 B2Baker Hughes Incroporated · 2007
- Portable motor pump22US 4,934,914 AEbara Corporation · 1990
- Self-cleaning screen with check valve for use in shallow water pumping18US 7,670,482 B22010
- Pump15US 3,981,628 A1976
- Electric submersible pump14US 4,002,936 A1977