F04B 9/133
Reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid
Official title: reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid motor
F04B9/133 (Reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid) appears on 73 US grants and 43 published applications in this corpus.
Search patents in F04B- Granted patents
- 73
- Published applications
- 43
- Assignees
- 44
- Inventors
- 120
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 2 | 3 |
| 2006 | 0 | 2 |
| 2007 | 3 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 3 |
| 2017 | 2 | 2 |
| 2018 | 1 | 1 |
| 2019 | 4 | 5 |
| 2020 | 3 | 2 |
| 2021 | 6 | 7 |
| 2022 | 2 | 2 |
| 2023 | 5 | 2 |
| 2024 | 4 | 2 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Compressor and method for compressing a working medium8 Jul 2025US 12,352,263 B2Maximator GmbH
- Industrial pneumatic pump for a viscous fluid3 Jun 2025US 12,320,350 B2Meclube S.R.L.
- Fluid transfer and depressurization system15 Apr 2025US 12,276,277 B2Tpe Midstream LLC
- Fluid pump with dual plungers and related systems and methods27 Aug 2024US 12,071,946 B2White Knight Fluid Handling Inc.
- Motor and hydraulic pump device including the motor20 Aug 2024US 12,066,022 B2Kosmek Ltd.
- Fluid transfer and depressurization system18 Apr 2024US 2024/0125311 A1Tpe Midstream LLC
- An industrial pneumatic pump for a viscous fluid1 Feb 2024US 2024/0035459 A1Meclube S.R.L.
- Double-Acting Piston Pump Of Application System23 Nov 2023US 2023/0372963 A1Robatech AG
- Compressor and method for compressing a working medium19 Oct 2023US 2023/0332595 A1Maximator GmbH
- Motor and hydraulic pump device including the motor13 Oct 2022US 2022/0325705 A1Kosmek Ltd.
Most cited
By later US patents
- Pump having fluid-actuated motor controlled by fluid-actuated distributor50US 4,104,008 ASchmidt Kranz & Co. · 1978
- Air driven hydraulic pump44US 7,168,928 B1Wilden Pump & Engineering Co. · 2007
- Fluid-powered submersible sampling pump41US 4,295,801 A1981
- Precision metered multiple fluid pumping system38US 5,599,177 ABinks Manufacturing Company · 1997
- Pumping system using solar energy37US 3,937,599 AAgence Nationale de Valorisation de la Recherche (ANVAR) · 1976