F04B 9/1295
Having two or more pumping chambers in series
Official title: {having two or more pumping chambers in series}
F04B9/1295 (Having two or more pumping chambers in series) appears on 12 US grants and 9 published applications in this corpus.
Search patents in F04B- Granted patents
- 12
- Published applications
- 9
- Assignees
- 8
- Inventors
- 21
- Latest grant
- 30 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Hybrid thermodynamic compressor9 Jun 2022US 2022/0178359 A1Boostheat
- Linear Peristaltic Pumps For Use With Fluidic Cartridges19 Nov 2020US 2020/0362846 A1Illumina, Inc.
- High-density powder pump26 Sep 2019US 2019/0293092 A1Verne Technology S.R.L.
- Method of Construction for High Cycle Fatigue Resistant Pressure Vessels in Hydrogen Service16 May 2019US 2019/0145395 A1Haskel International, LLC
Most cited
By later US patents
- Pneumatically operated reciprocating piston compressor29US 5,324,175 ANorthern Research & Engineering Corp. · 1994
- Fluid compressors12US 5,020,974 ANormalair-Garrett (Holdings) Limited · 1991
- Fluid well pump9US 6,435,838 B12002
- Fluid compressors4US 5,049,038 ANormalair-Garrett (Holdings) Limited · 1991
- Liquid feeding pump4US 5,785,506 AAhresty Corporation · 1998