F04D 9/004
Priming of not self-priming pumps
Official title: {Priming of not self-priming pumps}
F04D9/004 (Priming of not self-priming pumps) appears on 99 US grants and 91 published applications in this corpus.
Search patents in F04D- Granted patents
- 99
- Published applications
- 91
- Assignees
- 85
- Inventors
- 246
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 3 |
| 2004 | 2 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 4 |
| 2007 | 1 | 4 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 3 | 3 |
| 2014 | 3 | 4 |
| 2015 | 3 | 7 |
| 2016 | 2 | 4 |
| 2017 | 5 | 7 |
| 2018 | 3 | 3 |
| 2019 | 4 | 2 |
| 2020 | 3 | 8 |
| 2021 | 2 | 11 |
| 2022 | 4 | 4 |
| 2023 | 9 | 8 |
| 2024 | 7 | 2 |
| 2025 | 3 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of starting and stopping pump apparatuses coupled in series7 Apr 2026US 12,595,799 B2Ebara Corporation
- Vacuum priming system for close-coupled pumps7 Oct 2025US 12,435,722 B2Cornell Pump Company
- Priming system for infusion devices19 Aug 2025US 12,390,582 B2Avent, Inc.
- Pump14 Jan 2025US 12,196,227 B2Spike Brewing LLC
- Self-priming apparatus for quick no-water startup3 Dec 2024US 12,158,166 B2Jiangsu University
- Electronic solenoid control for a self-priming electric pump6 Aug 2026US 2026/0226890 A1Fluid Handling LLC
- Liquid transfer pump30 Jul 2026US 2026/0218708 A1Zhejiang Ele Smart Technology Co., Ltd.
- Drying-up method, cooling-down method, and hot-up method for a pump apparatus27 Nov 2025US 2025/0361877 A1Ebara Corporation
- Method of starting and stopping pump apparatuses coupled in series6 Nov 2025US 2025/0341215 A1Ebara Corporation
- Diaphragm wall cutter and method for cutting a cutting trench in the ground18 Jul 2024US 2024/0240427 A1BAUER Maschinen GmbH
Most cited
By later US patents
- Control algorithm of variable speed pumping system73US 8,019,479 B2Pentair Water Pool and Spa, Inc. · 2011
- Integrated blood handling system having active gas removal system and methods of use70US 6,730,267 B2Cardiovention, Inc. · 2004
- Self-priming pump system58US 4,780,050 ASundstrand Corporation · 1988
- Method and system for transferring liquid media55US 4,147,474 ANorsk Hydro A/S · 1979
- Sump pump with air column therein when pump is not operating52US 4,215,975 A1980