F04B 53/106
The valve being a membrane
Official title: {the valve being a membrane}
F04B53/106 (The valve being a membrane) appears on 147 US grants and 130 published applications in this corpus.
Search patents in F04B- Granted patents
- 147
- Published applications
- 130
- Assignees
- 85
- Inventors
- 271
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 4 |
| 2003 | 1 | 1 |
| 2004 | 0 | 6 |
| 2005 | 1 | 4 |
| 2006 | 3 | 9 |
| 2007 | 5 | 4 |
| 2008 | 0 | 5 |
| 2009 | 1 | 4 |
| 2010 | 4 | 2 |
| 2011 | 2 | 4 |
| 2012 | 3 | 2 |
| 2013 | 4 | 6 |
| 2014 | 3 | 5 |
| 2015 | 7 | 5 |
| 2016 | 1 | 8 |
| 2017 | 4 | 5 |
| 2018 | 7 | 11 |
| 2019 | 5 | 6 |
| 2020 | 13 | 8 |
| 2021 | 7 | 9 |
| 2022 | 6 | 9 |
| 2023 | 12 | 5 |
| 2024 | 7 | 4 |
| 2025 | 4 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Balanced pressure seal for high pressure pumps2 Jun 2026US 12,644,451 B2Wanner Engineering, Inc.
- Compact multi-chamber foam-at-a-distance pumps and dispensers5 May 2026US 12,616,342 B2GOJO Industries, Inc.
- Diaphragm pump14 Apr 2026US 12,601,340 B2Cytiva Sweden AB
- Underneath large-capacity single-gas-pump foam generating device16 Dec 2025US 12,495,937 B2Faner Aroma Product Co., Ltd.
- Multiple cavity reciprocating positive displacement fluid pump8 Jul 2025US 12,352,252 B2Cytiva Sweden AB
- Diaphragm Pump23 Jul 2026US 2026/0210347 A1Cytiva Sweden AB
- Diaphragm pump and valve assembly for a diaphragm pump11 Dec 2025US 2025/0376980 A1Wanner Engineering, Inc.
- Balanced pressure seal for high pressure pumps10 Apr 2025US 2025/0116270 A1Wanner Engineering, Inc.
- Diaphragm Pump2 Jan 2025US 2025/0003404 A1PSG Germany GmbH
- Cassette system integrated apparatus24 Oct 2024US 2024/0352927 A1DEKA Products Limited Partnership
Most cited
By later US patents
- Membrane pump with stretchable pump membrane348US 6,948,918 B2Novo Nordisk A/S · 2005
- Apparatus for pumping fluid at a steady flow rate244US 5,921,951 ATherakos, Inc. · 1999
- Cassette system integrated apparatus195US 8,499,780 B2DEKA Products Limited Partnership · 2013
- Dispensing assembly with interchangeable cartridge pumps167US 5,645,114 ACytoLogix Corporation · 1997
- Dispensing assembly with interchangeable cartridge pumps161US 5,947,167 ACytoLogix Corporation · 1999