G21H 1/106
Cells provided with thermionic generators
Official title: {Cells provided with thermionic generators}
G21H1/106 (Cells provided with thermionic generators) appears on 21 US grants and 25 published applications in this corpus.
Search patents in G21H- Granted patents
- 21
- Published applications
- 25
- Assignees
- 11
- Inventors
- 57
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 4 |
| 2021 | 2 | 2 |
| 2022 | 2 | 6 |
| 2023 | 3 | 4 |
| 2024 | 4 | 3 |
| 2025 | 1 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Energy converter system and method of operation12 May 2026US 12,626,832 B2Spark Thermionics, Inc.
- Power generation devices, associated components, and methods13 Jan 2026US 12,525,371 B2Battelle Energy Alliance, LLC
- Structured plasma cell energy converter for a nuclear reactor7 Jan 2025US 12,191,043 B2
- System and method for thermionic energy conversion10 Dec 2024US 12,165,779 B2Spark Thermionics, Inc.
- Peltier with optimal levels of augmenting radiation17 Sep 2024US 12,096,691 B2Howe Industries LLC
- Energy converter system and method of operation26 Feb 2026US 2026/0058030 A1Spark Thermionics, Inc.
- System and method for thermionic energy conversion23 Jan 2025US 2025/0029744 A1Spark Thermionics, Inc.
- System and method for thermionic energy conversion14 Nov 2024US 2024/0379256 A1Spark Thermionics, Inc.
- Structured Plasma Cell Energy Converter For A Nuclear Reactor22 Feb 2024US 2024/0062921 A1
- Heavy Ion Plasma Energy Reactor11 Jan 2024US 2024/0013941 A1
Most cited
By later US patents
- Direct thermal-electric conversion for geothermal energy recovery86US 4,047,093 A1977
- Method and apparatus for thermionic generator69US 5,994,638 ABorealis Technical Limited · 1999
- Thermionic generator31US 6,229,083 B1Borealis Technical Limited · 2001
- Self-powered microthermionic converter15US 6,774,532 B1Sandia Corporation · 2004
- Nuclear thermionic avalanche cells with thermoelectric (NTAC-TE) generator in tandem mode13US 10,269,463 B2United States of America as represented by the Administrator of NASA · 2019