F04D 9/006
By venting gas or using gas valves
Official title: {by venting gas or using gas valves}
F04D9/006 (By venting gas or using gas valves) appears on 41 US grants and 42 published applications in this corpus.
Search patents in F04D- Granted patents
- 41
- Published applications
- 42
- Assignees
- 38
- Inventors
- 94
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 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 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 4 |
| 2007 | 1 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 3 | 2 |
| 2014 | 3 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 2 | 5 |
| 2021 | 1 | 2 |
| 2022 | 3 | 2 |
| 2023 | 4 | 4 |
| 2024 | 2 | 0 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of starting and stopping pump apparatuses coupled in series7 Apr 2026US 12,595,799 B2Ebara Corporation
- 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
- Quick no-water startup apparatus for centrifugal pump20 Feb 2024US 11,905,976 B2Jiangsu University
- 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
- 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
- Pump10 Aug 2023US 2023/0250823 A1Spike Brewing LLC
Most cited
By later US patents
- Integrated blood handling system having active gas removal system and methods of use70US 6,730,267 B2Cardiovention, Inc. · 2004
- Sump pump with air column therein when pump is not operating52US 4,215,975 A1980
- Micro-processor controlled active gas removal apparatus38US 7,541,000 B2Cardiovention, Inc. · 2009
- Integrated blood handling system having active gas removal system and methods of use37US 6,960,322 B2Cardiovention, Inc. · 2005
- Fuel delivery with self-priming fuel pump23US 5,263,459 AWalbro Corporation · 1993