F04D 9/007
Preventing loss of prime, siphon breakers
Official title: {Preventing loss of prime, siphon breakers (stopping of pumps F04D15/02)}
F04D9/007 (Preventing loss of prime, siphon breakers) appears on 55 US grants and 42 published applications in this corpus.
Search patents in F04D- Granted patents
- 55
- Published applications
- 42
- Assignees
- 39
- Inventors
- 107
- Latest grant
- 3 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 3 | 1 |
| 2007 | 3 | 10 |
| 2008 | 2 | 0 |
| 2009 | 1 | 1 |
| 2010 | 3 | 1 |
| 2011 | 1 | 5 |
| 2012 | 2 | 1 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 3 | 1 |
| 2016 | 0 | 3 |
| 2017 | 2 | 2 |
| 2018 | 0 | 1 |
| 2019 | 2 | 3 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 4 | 0 |
| 2023 | 0 | 2 |
| 2024 | 3 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Self-priming apparatus for quick no-water startup3 Dec 2024US 12,158,166 B2Jiangsu University
- Systems and methods for maintaining the prime of a pump1 Oct 2024US 12,104,612 B1Purdy Enterprises Inc.
- Quick no-water startup apparatus for centrifugal pump20 Feb 2024US 11,905,976 B2Jiangsu University
- Fuel pump11 Oct 2022US 11,466,689 B1Zhongshan Peili Technology Co., Ltd.
- Apparatuses and systems for regulating flow from a geological formation, and related methods23 Aug 2022US 11,421,518 B2Forum US, Inc.
- Viscous, Inertial Pressure, with Energy Recovery pump24 Sep 2026US 2026/0286963 A1
- Self-priming apparatus for quick no-water startup5 Oct 2023US 2023/0313801 A1Jiangsu University
- Quick no-water startup apparatus for centrifugal pump24 Aug 2023US 2023/0265850 A1Jiangsu University
- 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
Most cited
By later US patents
- Slurry pump apparatus including fluid housing117US 5,114,312 AAtsco, Inc. · 1992
- 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
- Pump suction vacuum lift vortex control16US 4,576,197 AMidwest Energy Services Company · 1986