F02G 2290/00
Engines characterised by the use of a particular power transfer medium
Official title: Engines characterised by the use of a particular power transfer medium, e.g. Helium
F02G2290/00 (Engines characterised by the use of a particular power transfer medium) appears on 11 US grants and 11 published applications in this corpus.
Search patents in F02G- Granted patents
- 11
- Published applications
- 11
- Assignees
- 5
- Inventors
- 16
- Latest grant
- 26 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 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 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Expander system26 Sep 2023US 11,767,784 B2Volvo Car Corporation
- Near-adiabatic engine20 Apr 2021US 10,982,543 B2
- Engine with differential evaporation pressures1 Dec 2020US 10,851,733 B2
- Nearly full adiabatic engine22 Oct 2019US 10,451,000 B2
- Toroidal spiral cascading of multiple heat engine stages in traveling wave thermoacoustic engines28 May 2019US 10,302,071 B2Northrop Grumman Systems Corporation
- Expander system7 Jul 2022US 2022/0213828 A1Volvo Car Corporation
- Near-adiabatic engine6 Feb 2020US 2020/0040731 A1
- Toroidal spiral cascading of multiple heat engine stages in traveling wave thermoacoustic engines2 May 2019US 2019/0131849 A1Northrop Grumman Systems Corporation
- A nearly full adiabatic engine23 Aug 2018US 2018/0238265 A1
- Engine with differential evaporation pressures7 Dec 2017US 2017/0350348 A1
Most cited
By later US patents
- System and method for the co-generation of fuel having a closed-loop energy cycle26US 7,401,578 B2Gemini Energy Technologies, Inc. · 2008
- Stabilized free-piston stirling cycle machine14US 4,967,558 AStirling Technology Company · 1990
- System and method for the co-generation of fuel having a closed-loop energy cycle4US 8,082,889 B2Gemini Energy Technologies, Inc. · 2011
- System and method for the co-generation of fuel having a closed-loop energy cycle2US 7,690,333 B2Gemini Energy Technologies, Inc. · 2010
- High efficiency energy conversion1US 9,273,554 B22016