F04B 43/0736
With two or more pumping chambers in parallel
Official title: {with two or more pumping chambers in parallel}
F04B43/0736 (With two or more pumping chambers in parallel) appears on 267 US grants and 190 published applications in this corpus.
Search patents in F04B- Granted patents
- 267
- Published applications
- 190
- Assignees
- 112
- Inventors
- 333
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 3 |
| 2002 | 12 | 6 |
| 2003 | 5 | 5 |
| 2004 | 6 | 5 |
| 2005 | 5 | 6 |
| 2006 | 4 | 6 |
| 2007 | 2 | 8 |
| 2008 | 3 | 12 |
| 2009 | 6 | 4 |
| 2010 | 4 | 10 |
| 2011 | 2 | 11 |
| 2012 | 11 | 4 |
| 2013 | 10 | 11 |
| 2014 | 6 | 9 |
| 2015 | 8 | 13 |
| 2016 | 5 | 7 |
| 2017 | 8 | 6 |
| 2018 | 10 | 4 |
| 2019 | 7 | 9 |
| 2020 | 9 | 7 |
| 2021 | 1 | 6 |
| 2022 | 8 | 14 |
| 2023 | 9 | 5 |
| 2024 | 11 | 7 |
| 2025 | 6 | 8 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diaphragm pump drive for an electric pump1 Sep 2026US 12,723,581 B2Graco Minnesota Inc.
- Double diaphragm pump23 Jun 2026US 12,663,003 B2Unibloc Hygienic Technologies UK, Ltd.
- Control arrangement and method for operating diaphragm pump systems27 Jan 2026US 12,535,063 B2Autoquip, Inc.
- Pumping cassette20 Jan 2026US 12,529,363 B2DEKA Products Limited Partnership
- Diaphragm pump20 Jan 2026US 12,529,369 B2Piusi S.P.A.
- Double diaphragm pump with improved plain bearing27 Aug 2026US 2026/0251134 A1Lutz Pumpen GmbH
- Multiple displacement pump7 May 2026US 2026/0126037 A1Lutz Pumpen GmbH
- Air operated double diaphragm pump with accessible features9 Apr 2026US 2026/0098528 A1Warren Rupp, Inc.
- Diaphragm Pump Assemblies29 Jan 2026US 2026/0028977 A1Autoquip, Inc.
- Diaphragm pump drive for an electric pump21 Aug 2025US 2025/0264096 A1Graco Minnesota Inc.
Most cited
By later US patents
- User interface and monitoring functions for automated peritoneal dialysis systems430US 5,438,510 ADEKA Products Limited Partnership · 1995
- Thermal and coductivity sensing systems, devices and methods316US 7,794,141 B2DEKA Products Limited Partnership · 2010
- Fluid pumping systems, devices and methods254US 8,292,594 B2DEKA Products Limited Partnership · 2012
- Cassette system integrated apparatus229US 7,967,022 B2DEKA Products Limited Partnership · 2011
- Pumping cassette225US 8,273,049 B2DEKA Products Limited Partnership · 2012