F04B 45/053
Pumps having fluid drive
F04B45/053 (Pumps having fluid drive) appears on 137 US grants and 165 published applications in this corpus.
Search patents in F04B- Granted patents
- 137
- Published applications
- 165
- Assignees
- 66
- Inventors
- 222
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 7 |
| 2009 | 1 | 6 |
| 2010 | 0 | 0 |
| 2011 | 2 | 5 |
| 2012 | 4 | 4 |
| 2013 | 4 | 6 |
| 2014 | 3 | 4 |
| 2015 | 6 | 19 |
| 2016 | 5 | 13 |
| 2017 | 14 | 11 |
| 2018 | 10 | 10 |
| 2019 | 9 | 10 |
| 2020 | 16 | 9 |
| 2021 | 7 | 15 |
| 2022 | 9 | 11 |
| 2023 | 9 | 14 |
| 2024 | 11 | 7 |
| 2025 | 12 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pumping cassette20 Jan 2026US 12,529,363 B2DEKA Products Limited Partnership
- Diaphragm pump20 Jan 2026US 12,529,369 B2Piusi S.P.A.
- Device and method for monitoring oil pressure and gas pressure of diaphragm compressor20 Jan 2026US 12,529,374 B2Xi'an Jiao Tong University
- Leak detection from diaphragm compressor18 Nov 2025US 12,473,903 B2Cavendish Hydrogen A/S
- High-throughput diaphragm compressor2 Sep 2025US 12,404,851 B2PDC Machines Inc.
- Oil overflow control for diaphragm compressor3 Sep 2026US 2026/0258800 A1
- Capacity control for diaphragm compressor13 Aug 2026US 2026/0235116 A1
- A diaphragm compressor arrangement and use thereof30 Jul 2026US 2026/0218698 A1Cavendish Hydrogen A/S
- Pneumatic exomuscle system and method27 Nov 2025US 2025/0360611 A1
- Drive system for a positive displacement pump26 Jun 2025US 2025/0207575 A1Graco Minnesota Inc.
Most cited
By later US patents
- Cassette system integrated apparatus229US 7,967,022 B2DEKA Products Limited Partnership · 2011
- Pumping cassette225US 8,273,049 B2DEKA Products Limited Partnership · 2012
- Cassette system integrated apparatus195US 8,499,780 B2DEKA Products Limited Partnership · 2013
- Pumping cassette184US 8,317,492 B2DEKA Products Limited Partnership · 2012
- Hemodialysis systems and methods156US 8,357,298 B2DEKA Products Limited Partnership · 2013