G21D 3/16
Varying reactivity
G21D3/16 (Varying reactivity) appears on 15 US grants and 9 published applications in this corpus.
Search patents in G21D- Granted patents
- 15
- Published applications
- 9
- Assignees
- 11
- Inventors
- 47
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Using xenon concentration in controlling a nuclear power plant7 Jan 2025US 12,191,044 B2Framatome
- Reactivity booster-quencher, automatic power modules separator, and related methods thereof19 Jul 2022US 11,393,601 B2Carbon Free Holdings LLC
- Control rod operation monitoring method and control rod operation monitoring system7 Sep 2021US 11,114,210 B2Hitachi-GE Nuclear Energy, Ltd.
- Load-following nuclear reactor system using thermal expansion-based neutron reflector movement and fuel assembly interval adjustment mechanisms and liquid metal primary coolant27 Apr 2021US 10,991,468 B2Clear Inc.
- Nuclear power generation system utilizing thermal expansion in metallic members to move a neutron reflector31 Dec 2019US 10,522,259 B2Clear Inc.
- Method and assembly for controlling a nuclear reactor, nuclear reactor equipped with such an assembly13 Jun 2024US 2024/0194360 A1Framatome
- Method for controlling a nuclear power plant and controller19 Jan 2023US 2023/0012716 A1Framatome
- Reactivity booster-quencher, automatic power modules separator, and related methods thereof19 Aug 2021US 2021/0257118 A1Carbon Free Holdings LLC
- Load-following small nuclear reactor system using liquid metal primary coolant10 Oct 2019US 2019/0311816 A1Clear Inc.
- Control rod operation monitoring method and control rod operation monitoring system11 Jul 2019US 2019/0214157 A1Hitachi-GE Nuclear Energy, Ltd.
Most cited
By later US patents
- Fast reactor having reflector control system33US 5,420,897 ACentral Research Institute of Electric Power Industry · 1995
- Method for operating a nuclear reactor to accommodate load follow while maintaining a substantially constant axial power distribution18US 4,222,822 AWestinghouse Electric Corp. · 1980
- Method of operating a nuclear reactor which maintains a substantially constant axial power distribution profile with changes in load14US 4,057,463 AWestinghouse Electric Corp. · 1977
- Reactivity modulation of a boiling water reactor to stabilize thermal-hydraulic instabilities13US 5,141,710 AGeneral Electric Company · 1992
- Reactor-turbine control for low steam pressure operation in a pressurized water reactor9US 4,000,037 AWestinghouse Electric Corp. · 1976