F04B 43/025
Two or more plate-like pumping members in parallel
Official title: {two or more plate-like pumping members in parallel}
F04B43/025 (Two or more plate-like pumping members in parallel) appears on 324 US grants and 372 published applications in this corpus.
Search patents in F04B- Granted patents
- 324
- Published applications
- 372
- Assignees
- 200
- Inventors
- 630
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 3 |
| 2003 | 3 | 11 |
| 2004 | 6 | 2 |
| 2005 | 5 | 5 |
| 2006 | 3 | 5 |
| 2007 | 3 | 4 |
| 2008 | 0 | 10 |
| 2009 | 1 | 13 |
| 2010 | 2 | 11 |
| 2011 | 5 | 3 |
| 2012 | 7 | 13 |
| 2013 | 12 | 17 |
| 2014 | 6 | 14 |
| 2015 | 10 | 17 |
| 2016 | 11 | 15 |
| 2017 | 14 | 22 |
| 2018 | 18 | 21 |
| 2019 | 14 | 16 |
| 2020 | 18 | 14 |
| 2021 | 16 | 33 |
| 2022 | 18 | 27 |
| 2023 | 21 | 19 |
| 2024 | 18 | 26 |
| 2025 | 22 | 23 |
| 2026 | 23 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Diaphragm pumping8 Sep 2026US 12,729,675 B1PSG Germany GmbH
- Liquid pumping cassettes and associated pressure distribution manifold and related methods8 Sep 2026US 12,729,676 B2DEKA Products Limited Partnership
- Diaphragm pump drive for an electric pump1 Sep 2026US 12,723,581 B2Graco Minnesota Inc.
- Pump with conduit system fluidly coupled to cylinders21 Jul 2026US 12,687,165 B2Ingersoll-Rand Industrial U.S., Inc.
- Active balancing of multiple interleaved piezo pumps23 Jun 2026US 12,662,997 B2Safran Landing Systems UK LTD
- Multiple displacement pump24 Sep 2026US 2026/0286947 A1Lutz Pumpen GmbH
- Multiple displacement pump24 Sep 2026US 2026/0286948 A1Lutz Pumpen GmbH
- Liquid pumping cassettes and associated pressure distribution manifold and related methods17 Sep 2026US 2026/0275977 A1DEKA Products Limited Partnership
- Double diaphragm pump with improved plain bearing27 Aug 2026US 2026/0251134 A1Lutz Pumpen GmbH
- Diaphragm pump housing having direct inlet channels to each chamber27 Aug 2026US 2026/0251137 A1Flow Control LLC
Most cited
By later US patents
- Programmable, fluid pressure actuated blood processing systems and methods236US 6,949,079 B1Baxter International Inc. · 2005
- Cassette system integrated apparatus229US 7,967,022 B2DEKA Products Limited Partnership · 2011
- Pumping cassette225US 8,273,049 B2DEKA Products Limited Partnership · 2012
- Fluid flow cassette with pressure actuated pump and valve stations198US 6,481,980 B1Baxter International Inc. · 2002
- Pumping cassette184US 8,317,492 B2DEKA Products Limited Partnership · 2012