F02G 2254/90
Heat inputs: by radioactivity
Official title: by radioactivity
F02G2254/90 (Heat inputs: by radioactivity) appears on 9 US grants and 8 published applications in this corpus.
Search patents in F02G- Granted patents
- 9
- Published applications
- 8
- Assignees
- 6
- Inventors
- 16
- Latest grant
- 20 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 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 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Internal-external hybrid microreactor in a compact configuration20 Sep 2022US 11,450,442 B2Global Energy Research Associates, LLC
- Toroidal spiral cascading of multiple heat engine stages in traveling wave thermoacoustic engines28 May 2019US 10,302,071 B2Northrop Grumman Systems Corporation
- Hafnium turbine engine and method of operation24 Oct 2017US 9,797,309 B2
- Common platform modular stirling radioisotope generator2 Aug 2016US 9,404,440 B1Lockheed Martin Corporation
- Stirling radioisotope generator and thermal management system9 Dec 2014US 8,908,820 B1Lockheed Martin Corporation
- The Use of a Stirling Engine to Provide Emergency Heat Removal to the Containment Environment of a Nuclear Reactor Building19 Aug 2021US 2021/0257115 A1
- Internal-External Hybrid Microreactor in a Compact Configuration20 Aug 2020US 2020/0265964 A1Global Energy Research Associates, LLC
- Toroidal spiral cascading of multiple heat engine stages in traveling wave thermoacoustic engines2 May 2019US 2019/0131849 A1Northrop Grumman Systems Corporation
- Energy conversion and associated apparatus5 Mar 2015US 2015/0059333 A1
- Hafnium turbine engine and method of operation30 Oct 2014US 2014/0318132 A1
Most cited
By later US patents
- Thermomechanical electrical generator/power supply for a downhole tool32US 4,805,407 AHalliburton Company · 1989
- Method and system for providing a rotational output using a non-combustion heat source5US 7,685,817 B2Ceti, Inc. · 2010
- Stirling radioisotope generator and thermal management system2US 8,908,820 B1Lockheed Martin Corporation · 2014
- Hot-gas engine1US 7,028,473 B22006
- Common platform modular stirling radioisotope generator1US 9,404,440 B1Lockheed Martin Corporation · 2016