F02G 2270/70
Liquid pistons
F02G2270/70 (Liquid pistons) appears on 28 US grants and 9 published applications in this corpus.
Search patents in F02G- Granted patents
- 28
- Published applications
- 9
- Assignees
- 10
- Inventors
- 37
- Latest grant
- 15 Sep 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Liquid piston stirling engine with linear generator15 Sep 2020US 10,774,783 B2Stratum Ventures, LLC
- Stirling motor and heat pump12 Apr 2005US 6,877,314 B2
- Fluidic-piston engine27 May 2003US 6,568,169 B2
- Apparatus and method for transferring entropy with the aid of a thermodynamic cycle29 Oct 2002US 6,470,679 B1
- Heat engine and heat pump10 Aug 1999US 5,934,076 ANational Power PLC
- Control and configuration of software-defined machines24 Feb 2022US 2022/0056868 A1Energy Internet Corporation
- Liquid Piston Stirling Engine with Linear Generator24 Oct 2019US 2019/0323451 A1Stratum Ventures, LLC
- Hybrid energy system3 Jan 2019US 2019/0003341 A1Apollo Hybrid, Inc.
- Liquid piston engine22 Jun 2017US 2017/0175672 A1Wave Solar LLC
- Decoupled, fluid displacer, sterling engine18 Apr 2013US 2013/0093192 A1
Most cited
By later US patents
- Apparatus and process for pressure swing adsorption separation100US 4,801,308 A1989
- Heat engine and heat pump94US 5,934,076 ANational Power PLC · 1999
- Ericsson cycle machine93US 4,984,432 A1991
- Method and apparatus for gas separation and synthesis77US 4,702,903 A1987
- Isothermalizer system54US 4,446,698 ANew Process Industries, Inc. · 1984