G21B 1/057
Tokamaks
Official title: {Tokamaks}
G21B1/057 (Tokamaks) appears on 93 US grants and 139 published applications in this corpus.
Search patents in G21B- Granted patents
- 93
- Published applications
- 139
- Assignees
- 36
- Inventors
- 258
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 6 |
| 2017 | 2 | 5 |
| 2018 | 7 | 9 |
| 2019 | 3 | 10 |
| 2020 | 7 | 15 |
| 2021 | 9 | 10 |
| 2022 | 6 | 7 |
| 2023 | 6 | 13 |
| 2024 | 9 | 22 |
| 2025 | 13 | 10 |
| 2026 | 6 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Repairing a surface of a divertor or first wall in a tokamak via deposit of refractory metal while maintaining a vacuum7 Jul 2026US 12,676,244 B2Tokamak Energy Ltd
- Superconductor electromagnet16 Jun 2026US 12,658,347 B2Tokamak Energy Ltd
- Simulation method for three-dimensional full-space plasma response in east tokamak21 Apr 2026US 12,608,517 B2Dalian University of Technology
- Neutral beam injection power feedback control method7 Apr 2026US 12,598,690 B2Hefei Institutes of Physical Sciences, Chinese Academy of Sciences
- High temperature superconductor magnet24 Mar 2026US 12,586,702 B2Tokamak Energy Ltd
- Divertor gas puffing8 Oct 2026US 2026/0311894 A1Tokamak Energy Ltd
- Resource usage prediction method of plasma control system based on lstm1 Oct 2026US 2026/0301982 A1Hefei Institutes of Physical Science, Chinese Academy of Sciences
- Central solenoid (cs) retaining structures and related techniques17 Sep 2026US 2026/0279603 A1Commonwealth Fusion Systems LLC
- Ceramic coating13 Aug 2026US 2026/0234782 A1
- Coating of plasma-wall interaction components in nuclear power generators30 Jul 2026US 2026/0221297 A1ENEA - Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile
Most cited
By later US patents
- Systems for merging of toroidal plasmas86US 4,274,919 AGeneral Atomic Company · 1981
- Systems and methods for compressing plasma44US 8,537,958 B2General Fusion Inc. · 2013
- Tokamak with mechanical compression of toroidal magnetic field23US 4,305,784 AThe United States of America as represented by the United States Department of Energy · 1981
- Anomalous - viscosity current drive20US 4,767,590 AThe United States of America as represented by the United States Department of Energy · 1988
- Double layer field shaping systems for toroidal plasmas19US 4,330,864 AGeneral Atomic Company · 1982