G21D 3/00
Control of nuclear power plant
Official title: Control of nuclear power plant (control of nuclear reaction in general G21C7/00)
G21D3/00 (Control of nuclear power plant) appears on 770 US grants and 840 published applications in this corpus.
Search patents in G21D- Granted patents
- 770
- Published applications
- 840
- Assignees
- 250
- Inventors
- 2,030
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 10 | 0 |
| 1978 | 11 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 8 | 0 |
| 1987 | 17 | 0 |
| 1988 | 9 | 0 |
| 1989 | 11 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 11 | 0 |
| 1993 | 14 | 0 |
| 1994 | 16 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 12 | 0 |
| 1999 | 9 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 1 |
| 2002 | 7 | 8 |
| 2003 | 11 | 11 |
| 2004 | 10 | 23 |
| 2005 | 9 | 14 |
| 2006 | 5 | 15 |
| 2007 | 7 | 19 |
| 2008 | 13 | 20 |
| 2009 | 16 | 18 |
| 2010 | 11 | 26 |
| 2011 | 11 | 45 |
| 2012 | 16 | 40 |
| 2013 | 23 | 71 |
| 2014 | 27 | 44 |
| 2015 | 27 | 48 |
| 2016 | 32 | 50 |
| 2017 | 44 | 29 |
| 2018 | 32 | 43 |
| 2019 | 43 | 29 |
| 2020 | 32 | 42 |
| 2021 | 34 | 38 |
| 2022 | 33 | 39 |
| 2023 | 26 | 42 |
| 2024 | 23 | 46 |
| 2025 | 28 | 35 |
| 2026 | 22 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- In-vessel natural circulation alkali metal reactor system, purification system, and associated methods6 Oct 2026US 12,755,855 B2Oklo Inc.
- Integrated monopile system having a nuclear reactor18 Aug 2026US 12,712,090 B2Blue Energy Global Inc.
- Fuel element with multi-smear density fuel4 Aug 2026US 12,700,514 B2TerraPower, LLC
- Integrated control logic device and operating method thereof to control water level of steam generator of nuclear power plant26 May 2026US 12,638,171 B2Kepco Engineering & Construction Company, Inc.
- Method and electronic device for assisting with surveillance of an element of a nuclear reactor, associated computer and associated system19 May 2026US 12,632,952 B2Framatome
- 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
- Expert advice display processing system102US 5,167,010 AWestinghouse Electric Corp. · 1992
- Plant malfunction diagnostic method90US 5,023,045 ADoryokuro Kakunenryo Kaihatsu Jigyodan · 1991
- Ultrasensitive surveillance of sensors and processes85US 5,987,399 AArch Development Corporation · 1999