G21D
Nuclear power plant
G21D (Nuclear power plant) appears on 1,637 US grants and 1,705 published applications in this corpus.
Search patents in G21D- Granted patents
- 1,637
- Published applications
- 1,705
- Assignees
- 543
- Inventors
- 3,833
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 35 | 0 |
| 1977 | 30 | 0 |
| 1978 | 25 | 0 |
| 1979 | 21 | 0 |
| 1980 | 23 | 0 |
| 1981 | 30 | 0 |
| 1982 | 14 | 0 |
| 1983 | 7 | 0 |
| 1984 | 15 | 0 |
| 1985 | 6 | 0 |
| 1986 | 16 | 0 |
| 1987 | 29 | 0 |
| 1988 | 23 | 0 |
| 1989 | 28 | 0 |
| 1990 | 20 | 0 |
| 1991 | 18 | 0 |
| 1992 | 20 | 0 |
| 1993 | 32 | 0 |
| 1994 | 31 | 0 |
| 1995 | 18 | 0 |
| 1996 | 14 | 0 |
| 1997 | 8 | 0 |
| 1998 | 21 | 0 |
| 1999 | 14 | 0 |
| 2000 | 12 | 0 |
| 2001 | 10 | 1 |
| 2002 | 14 | 17 |
| 2003 | 19 | 28 |
| 2004 | 17 | 36 |
| 2005 | 25 | 23 |
| 2006 | 16 | 28 |
| 2007 | 10 | 34 |
| 2008 | 19 | 34 |
| 2009 | 23 | 40 |
| 2010 | 14 | 58 |
| 2011 | 19 | 72 |
| 2012 | 22 | 75 |
| 2013 | 38 | 113 |
| 2014 | 45 | 80 |
| 2015 | 52 | 104 |
| 2016 | 73 | 90 |
| 2017 | 81 | 72 |
| 2018 | 74 | 84 |
| 2019 | 90 | 66 |
| 2020 | 71 | 95 |
| 2021 | 66 | 93 |
| 2022 | 73 | 103 |
| 2023 | 69 | 96 |
| 2024 | 73 | 95 |
| 2025 | 70 | 88 |
| 2026 | 44 | 80 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- G21D 3/00Control of nuclear power plant770
- G21D 1/00Details of nuclear power plant669
- G21D 5/00Arrangements of reactor and engine in which reactor-produced heat is converted into225
- G21D 7/00Arrangements for direct production of electric energy from fusion or fission reactions110
- G21D 9/00Arrangements to provide heat for purposes other than conversion into power89
Recent patents
- Nuclear reactor integrated oil and gas production systems and methods of operation6 Oct 2026US 12,753,674 B2Natura Resources LLC
- In-vessel natural circulation alkali metal reactor system, purification system, and associated methods6 Oct 2026US 12,755,855 B2Oklo Inc.
- Remote-controlled dismantling robot and dismantling method for nuclear facility decommissioning22 Sep 2026US 12,744,131 B2
- Platform and platform system for nuclear power plant8 Sep 2026US 12,731,701 B2Framatome
- Integrated monopile system having a nuclear reactor18 Aug 2026US 12,712,090 B2Blue Energy Global Inc.
- Electronuclear cogeneration installation with light water reactor (LWR) using a thermal storage cycle connected to a heat network and arranged thermally in parallel with the conversion cycle of the reactor8 Oct 2026US 2026/0311902 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Apparatus for controlling nuclear reactor and method thereof1 Oct 2026US 2026/0301979 A1Korea Atomic Energy Research Institute
- Nuclear reactor protection systems and methods1 Oct 2026US 2026/0301980 A1NuScale Power, LLC
- Nuclear reactor, reactor internals, and method for designing same1 Oct 2026US 2026/0301981 A1Shanghai Nuclear Engineering Research & Design Institute
- Resource usage prediction method of plasma control system based on lstm1 Oct 2026US 2026/0301982 A1Hefei Institutes of Physical Science, Chinese Academy of Sciences
Most cited
By later US patents
- Method and apparatus for automatic abnormal events monitor in operating plants243US 4,060,716 ARockwell International Corporation · 1977
- Operator interface for plant component control system124US 5,291,190 ACombustion Engineering, Inc. · 1994
- Controlled fusion in a field reversed configuration and direct energy conversion107US 6,611,106 B2The Regents of the University of California · 2003
- System, method and apparatus for lean combustion with plasma from an electrical arc107US 8,074,439 B2Foret Plasma Labs, LLC · 2011
- Expert advice display processing system102US 5,167,010 AWestinghouse Electric Corp. · 1992