F04B 45/033
Having fluid drive
Official title: having fluid drive
F04B45/033 (Having fluid drive) appears on 33 US grants and 35 published applications in this corpus.
Search patents in F04B- Granted patents
- 33
- Published applications
- 35
- Assignees
- 23
- Inventors
- 69
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 3 |
| 2016 | 3 | 2 |
| 2017 | 1 | 4 |
| 2018 | 0 | 1 |
| 2019 | 3 | 4 |
| 2020 | 1 | 2 |
| 2021 | 5 | 1 |
| 2022 | 3 | 4 |
| 2023 | 0 | 0 |
| 2024 | 3 | 5 |
| 2025 | 2 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump unit, storage device equipped therewith, and method for operating the storage device10 Mar 2026US 12,571,384 B2Scheugenpflug GmbH
- Bellows pump device17 Feb 2026US 12,553,429 B2Nippon Pillar Packing Co., Ltd.
- Conveying device17 Feb 2026US 12,553,430 B2Hydac Technology GmbH
- Direct connect piston-driven bellows pump23 Sep 2025US 12,421,953 B2Halliburton Energy Services.Inc.
- Heat-assisted pumping systems for use in negative pressure wound therapy7 Jan 2025US 12,186,166 B2Smith & Nephew, Inc.
- Bellows pump device11 Jun 2026US 2026/0160242 A1Nippon Pillar Packing Co., Ltd.
- Bellows pump device4 Jun 2026US 2026/0153079 A1Nippon Pillar Packing Co., Ltd.
- Compressor Device and a Cooling Device Having the Compressor Device24 Apr 2025US 2025/0129977 A1Pressure Wave Systems GmbH
- Direct connect piston-driven bellows pump14 Nov 2024US 2024/0376880 A1Halliburton Energy Services.Inc.
- Conveying Device with Bellows and Cooling Device17 Oct 2024US 2024/0344510 A1Hydac Technology GmbH
Most cited
By later US patents
- Solenoid operated blood pump drive system33US 4,046,137 AAvco Corporation · 1977
- Apparatus for pumping a fluid16US 9,518,577 B2Lynntech, Inc. · 2016
- Air compressor system12US 6,575,712 B12003
- Pressure transfer device and associated system, fleet and use, for pumping high volumes of fluids with particles at high pressures9US 11,268,502 B2RSM Imagineering AS · 2022
- Compressor integral with stirling engine9US 5,383,334 AAisin Seiki Kabushiki Kaisha · 1995