F01C 20/22
By changing the eccentricity between cooperating members
Official title: by changing the eccentricity between cooperating members
F01C20/22 (By changing the eccentricity between cooperating members) appears on 12 US grants and 6 published applications in this corpus.
Search patents in F01C- Granted patents
- 12
- Published applications
- 6
- Assignees
- 7
- Inventors
- 28
- Latest grant
- 3 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Displacement power controllers and applications3 Sep 2024US 12,078,193 B2Perisseuma Technologies LLC
- Fluid machinery, heat exchange equipment, and operating method for fluid machinery9 Mar 2021US 10,941,771 B2Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai
- Hydrostatic positive displacement machine7 Aug 2018US 10,041,350 B2Robert Bosch GmbH
- Variable flow hydraulic machine5 Sep 2017US 9,752,572 B2Concentric Birmingham Limited
- Rotary vane engines with movable rotors, and engine systems comprising same17 Apr 2012US 8,156,919 B2
- Displacement Power Controllers and Applications23 Nov 2023US 2023/0375011 A1Perisseuma Technologies LLC
- Fluid machinery, heat exchange equipment, and operating method for fluid machinery30 Aug 2018US 2018/0245591 A1Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai
- Hydrostatic Positive Displacement Machine28 Apr 2016US 2016/0115792 A1Robert Bosch GmbH
- Variable flow hydraulic machine12 Mar 2015US 2015/0071804 A1Concentric Birmingham Limited
- Rotary vane engines with movable rotors, and engine systems comprising same1 Mar 2012US 2012/0048230 A1
Most cited
By later US patents
- Synchronizing and unloading system for scroll fluid device45US 4,927,340 AArthur D. Little, Inc. · 1990
- Rotary internal combustion engine19US 4,018,191 A1977
- Vane air motor with eccentric adjustment ring and bearing ring for vane ends16US 4,177,024 AKaltenbach & Voigt GmbH & Co. · 1979
- Gerotor device with dual valving plates16US 4,639,202 A1987
- Scroll-type fluid displacement apparatus with angular offset varying means9US 4,551,078 ASanden Corporation · 1985