F04C 2/3447
The vanes having the form of rollers, slippers or the like
Official title: {the vanes having the form of rollers, slippers or the like}
F04C2/3447 (The vanes having the form of rollers, slippers or the like) appears on 39 US grants and 24 published applications in this corpus.
Search patents in F04C- Granted patents
- 39
- Published applications
- 24
- Assignees
- 25
- Inventors
- 50
- Latest grant
- 28 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 8 | 0 |
| 2003 | 2 | 1 |
| 2004 | 2 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 6 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 4 | 1 |
| 2020 | 0 | 3 |
| 2021 | 0 | 1 |
| 2022 | 3 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydraulic device configured as a starter motor28 May 2024US 11,994,094 B2Mathers Hydraulics Technologies Pty Ltd
- Rotary sliding vane machine with hydrostatic slide bearings for the vanes31 May 2022US 11,346,222 B2Tocircle Industries AS
- Hydraulic machine with stepped roller vane and fluid power system including hydraulic machine with starter motor capability22 Feb 2022US 11,255,193 B2Mathers Hydraulics Technologies Pty Ltd
- Pump unit for providing a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle8 Feb 2022US 11,242,869 B2FTE automotive GmbH
- Pump motor for high temperature fluids12 Nov 2019US 10,473,101 B2Nidec Motor Corporation
- Hydraulic device configured as a starter motor12 Jan 2023US 2023/0008105 A1Mathers Hydraulics Technologies Pty Ltd
- Rotary vane pump2 Sep 2021US 2021/0270266 A1FTE automotive GmbH
- A rotary sliding vane machine with hydrostatic slide bearings for the vanes26 Nov 2020US 2020/0370552 A1Tocircle Industries AS
- Pump unit for providing a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle12 Mar 2020US 2020/0080573 A1FTE automotive GmbH
- Hydraulic machine with stepped roller vane and fluid power system including hydraulic machine with starter motor capability9 Jan 2020US 2020/0011180 A1Mathers Hydraulics Technologies Pty Ltd
Most cited
By later US patents
- Downhole motor system29US 5,518,379 A1996
- Positive displacement pump systems with a variable control orifice25US 6,296,456 B1Dana Automotive Limited · 2001
- Rotary variable expansible chamber-kinetic hybrid pump20US 6,824,369 B22004
- Hydraulic roller motor18US 4,105,377 A1978
- Downhole roller vane motor and roller vane pump16US 5,733,113 A1998