F04B 1/1074
With two or more serially arranged radial piston-cylinder units
Official title: with two or more serially arranged radial piston-cylinder units
F04B1/1074 (With two or more serially arranged radial piston-cylinder units) appears on 17 US grants and 9 published applications in this corpus.
Search patents in F04B- Granted patents
- 17
- Published applications
- 9
- Assignees
- 15
- Inventors
- 27
- Latest grant
- 29 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 0 | 0 |
| 2020 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Insert type rotor for radial piston device29 Dec 2020US 10,876,522 B2Eaton Intelligent Power Limited
- Radial piston device with reduced pressure drop16 Jun 2020US 10,683,854 B2Eaton Intelligent Power Limited
- Variable radial fluid devices in series5 Apr 2016US 9,303,638 B2Bell Helicopter Textron Inc.
- Variable radial fluid device with differential piston control5 Jan 2016US 9,228,571 B2Bell Helicopter Textron Inc.
- Variable displacement radial piston pump3 Feb 2009US 7,484,939 B2Eaton Corporation
- Radial piston pumps and motors19 Jul 2018US 2018/0202421 A1Domin Fluid Power Limited
- Radial piston device with reduced pressure drop7 Jun 2018US 2018/0156206 A1Eaton Corporation
- Insert type rotor for radial piston device24 May 2018US 2018/0142677 A1Eaton Corporation
- Hydraulic radial piston devices3 Nov 2016US 2016/0319799 A1Eaton Corporation
- Centripetal Compressor26 Nov 2015US 2015/0337812 A1
Most cited
By later US patents
- Positive displacement pumps18US 5,228,840 AImpact MST Incorporated · 1993
- Variable displacement radial piston pump9US 7,484,939 B2Eaton Corporation · 2009
- Radial piston pump7US 4,930,994 AAlfred Teves GmbH · 1990
- Positive displacement centrifugal pump7US 5,484,268 AImpact MST Incorporated · 1996
- Throughput-adjustable fluid-displacement machine6US 4,202,252 AFeinmechanische Werke Mainz GmbH · 1980