G21D 7/00
Arrangements for direct production of electric energy from fusion or fission reactions
Official title: Arrangements for direct production of electric energy from fusion or fission reactions (obtaining electric energy from radioactive sources G21H1/00)
G21D7/00 (Arrangements for direct production of electric energy from fusion or fission reactions) appears on 110 US grants and 148 published applications in this corpus.
Search patents in G21D- Granted patents
- 110
- Published applications
- 148
- Assignees
- 57
- Inventors
- 199
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 4 | 10 |
| 2004 | 0 | 5 |
| 2005 | 4 | 4 |
| 2006 | 7 | 7 |
| 2007 | 2 | 8 |
| 2008 | 4 | 5 |
| 2009 | 3 | 4 |
| 2010 | 1 | 11 |
| 2011 | 0 | 2 |
| 2012 | 0 | 3 |
| 2013 | 1 | 7 |
| 2014 | 1 | 5 |
| 2015 | 3 | 3 |
| 2016 | 6 | 7 |
| 2017 | 8 | 7 |
| 2018 | 2 | 3 |
| 2019 | 4 | 4 |
| 2020 | 3 | 9 |
| 2021 | 4 | 3 |
| 2022 | 3 | 13 |
| 2023 | 8 | 9 |
| 2024 | 8 | 7 |
| 2025 | 5 | 6 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nuclear reactor comprising a reactor vessel containing a reactor core and an alkali metal thermoelectric converter5 May 2026US 12,620,502 B2Shanghai Nuclear Engineering Research & Design Institute
- Thermal power reactor30 Dec 2025US 12,512,229 B2Soletanche Freyssinet
- Nuclear-based heat and power for low-earth orbit (LEO) and deep space missions26 Aug 2025US 12,397,934 B2Hamilton Sundstrand Space Systems International, Inc.
- Thermophotovoltaic electrical power generator network1 Jul 2025US 12,347,574 B2Brilliant Light Power, Inc.
- Energy production devices and associated components, and related heat transfer devices and methods13 May 2025US 12,300,397 B2Battelle Energy Alliance, LLC
- Device for the implementation of accelerated ion-based nuclear fusion reactions13 Aug 2026US 2026/0237531 A1
- Liquid scintillator transducer-powered nuclear voltaic system30 Jul 2026US 2026/0221305 A1Nubatt Pte. Ltd.
- Gaseous xenon-based nuclear voltaic power source using radioisotopes in aerosol form9 Jul 2026US 2026/0196372 A1
- High-efficiency quantum-enhanced microcrystalline converter for nuclear voltaic power systems9 Jul 2026US 2026/0196374 A1Nubatt Pte. Ltd.
- Passive Thermal Energy Transport and Energy Conversion Methods for SLIMM Small Modular Reactor30 Apr 2026US 2026/0118068 A1UNM Rainforest Innovations
Most cited
By later US patents
- Controlled fusion in a field reversed configuration and direct energy conversion107US 6,611,106 B2The Regents of the University of California · 2003
- Formation of a field reversed configuration for magnetic and electrostatic confinement of plasma79US 6,891,911 B2The Regents of the University of California · 2005
- Formation of a field reversed configuration for magnetic and electrostatic confinement of plasma65US 6,664,740 B2The Regents of the University of California · 2003
- Controlled fusion in a field reversed configuration and direct energy conversion62US 6,850,011 B2The Regents of the University of California · 2005
- Magnetic and electrostatic confinement of plasma with tuning of electrostatic field52US 7,015,646 B2The Regents of the University of California · 2006