F04B 9/117
The pumping members not being mechanically connected to each other
Official title: the pumping members not being mechanically connected to each other
F04B9/117 (The pumping members not being mechanically connected to each other) appears on 173 US grants and 115 published applications in this corpus.
Search patents in F04B- Granted patents
- 173
- Published applications
- 115
- Assignees
- 121
- Inventors
- 351
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 9 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 2 |
| 2003 | 6 | 4 |
| 2004 | 2 | 4 |
| 2005 | 3 | 7 |
| 2006 | 3 | 3 |
| 2007 | 5 | 4 |
| 2008 | 2 | 5 |
| 2009 | 5 | 4 |
| 2010 | 2 | 2 |
| 2011 | 2 | 3 |
| 2012 | 1 | 1 |
| 2013 | 3 | 2 |
| 2014 | 1 | 4 |
| 2015 | 2 | 11 |
| 2016 | 4 | 7 |
| 2017 | 10 | 7 |
| 2018 | 11 | 7 |
| 2019 | 2 | 4 |
| 2020 | 6 | 6 |
| 2021 | 1 | 3 |
| 2022 | 2 | 4 |
| 2023 | 2 | 5 |
| 2024 | 5 | 6 |
| 2025 | 5 | 7 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for operating a construction-material and/or viscous-material pump for conveying construction material and/or viscous material, and construction-material and/or viscous-material pump for conveying construction material and/or viscous material28 Jul 2026US 12,692,860 B2Putzmeister Engineering GmbH
- Hydraulic power boosting system24 Feb 2026US 12,560,181 B2
- Conveying device17 Feb 2026US 12,553,430 B2Hydac Technology GmbH
- Cylinder in particular for hydrogen tank cycling facility10 Feb 2026US 12,546,296 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Fluid injection or suction device29 Apr 2025US 12,286,984 B2Fuji Filter Manufacturing Co., Ltd.
- Double acting pump25 Jun 2026US 2026/0177042 A1Mhwirth AS
- Multi-piston pump diagnostic testing13 Nov 2025US 2025/0347274 A1Schwing Bioset, Inc.
- Cryogenic pump for hydrogen fueling station16 Oct 2025US 2025/0320862 A1Bosch Rexroth AG
- Continuous flow multi-piston pump25 Sep 2025US 2025/0297599 A1Schwing Bioset, Inc.
- Pressure medium powered device generating reciprocating motion3 Jul 2025US 2025/0215850 A1Dynaset Oy
Most cited
By later US patents
- Quadraplex fluid pump268US 4,470,771 ATowler Hydraulics, Inc. · 1984
- Diaphragm pump139US 4,778,356 A1988
- Variable-volume storage and dispensing apparatus for compressed natural gas129US 5,454,408 AThermo Power Corporation · 1995
- Method and apparatus for pressurizing fluids106US 5,879,137 AJetec Company · 1999
- Method and apparatus for compressing gases with a liquid system96US 5,169,295 ATren Fuels, Inc. · 1992