G21B 1/00
Thermonuclear fusion reactors
G21B1/00 (Thermonuclear fusion reactors) appears on 826 US grants and 933 published applications in this corpus.
Search patents in G21B- Granted patents
- 826
- Published applications
- 933
- Assignees
- 363
- Inventors
- 1,837
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 14 | 0 |
| 1978 | 12 | 0 |
| 1979 | 18 | 0 |
| 1980 | 22 | 0 |
| 1981 | 35 | 0 |
| 1982 | 22 | 0 |
| 1983 | 22 | 0 |
| 1984 | 18 | 0 |
| 1985 | 12 | 0 |
| 1986 | 17 | 0 |
| 1987 | 25 | 0 |
| 1988 | 19 | 0 |
| 1989 | 16 | 0 |
| 1990 | 13 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 9 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 8 |
| 2003 | 7 | 23 |
| 2004 | 3 | 16 |
| 2005 | 12 | 12 |
| 2006 | 11 | 19 |
| 2007 | 5 | 17 |
| 2008 | 8 | 27 |
| 2009 | 9 | 21 |
| 2010 | 3 | 29 |
| 2011 | 4 | 33 |
| 2012 | 7 | 22 |
| 2013 | 11 | 26 |
| 2014 | 9 | 23 |
| 2015 | 18 | 28 |
| 2016 | 21 | 34 |
| 2017 | 22 | 50 |
| 2018 | 29 | 48 |
| 2019 | 37 | 47 |
| 2020 | 43 | 60 |
| 2021 | 30 | 40 |
| 2022 | 37 | 43 |
| 2023 | 30 | 52 |
| 2024 | 29 | 90 |
| 2025 | 38 | 74 |
| 2026 | 39 | 90 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sulfur blanket6 Oct 2026US 12,755,853 B2Beam Alpha, Inc.
- Plasma magneto-inertial fusion arrangement that compensates for timing variations among pulsed power-driven electromagnetic particle accelerators6 Oct 2026US 12,755,854 B1Equilibria Power
- Direct laser fusion system15 Sep 2026US 12,738,384 B2Blue Laser Fusion, Inc.
- Magnetic mirror machine15 Sep 2026US 12,738,385 B2Novatron Fusion Group AB
- Stellarators using arrays of permanent magnets1 Sep 2026US 12,725,725 B2The Trustees of Princeton University
- Divertor gas puffing8 Oct 2026US 2026/0311894 A1Tokamak Energy Ltd
- System and method for forming inertial confinement fusion target capsules with engineered foam interior surfaces8 Oct 2026US 2026/0311895 A1Lawrence Livermore National Security, LLC
- Resource usage prediction method of plasma control system based on lstm1 Oct 2026US 2026/0301982 A1Hefei Institutes of Physical Science, Chinese Academy of Sciences
- Fusion System that Includes a Toroidal Interior Chamber Formed by a Clamshell, the Toroidal Interior Chamber having an Interior Surface having a Rifled Geometric Shape and a Conductive Ring that is Between an Inner Perimeter of Sections of the Clamshell, Putting the Sections in Electrical Contact with each other24 Sep 2026US 2026/0290627 A1Kepler Fusion Technologies Inc.
- Fusion confinement device that forms a toroidal interior chamber having a rifling and an electronic controller electrically coupled to the fusion confinement device that is operable to control a plurality of pulses of electrical energy to the rifling24 Sep 2026US 2026/0290628 A1Kepler Fusion Technologies Inc.
Most cited
By later US patents
- Photoelectric enhanced plasma glow discharge system and method including radiation means514US 4,664,769 AInternational Business Machines Corporation · 1987
- Plasma facing components of nuclear fusion reactors employing tungsten materials370US 6,261,648 B1Japan Atomic Energy Research Institute · 2001
- Plasma facing components of nuclear fusion reactors employing tungsten materials369US 6,610,375 B2Japan Atomic Energy Research Institute · 2003
- Electromagnetic systems with double-resonant spiral coil components133US 7,973,296 B2Tetraheed LLC · 2011
- Controlled fusion in a field reversed configuration and direct energy conversion107US 6,611,106 B2The Regents of the University of California · 2003