G21C 19/30
With continuous purification of circulating fluent material
Official title: with continuous purification of circulating fluent material, e.g. by extraction of fission products {deterioration or corrosion products, impurities, e.g. by cold traps (purification of circulating fluid fuels G21C19/50; separation in general B01D)}
G21C19/30 (With continuous purification of circulating fluent material) appears on 368 US grants and 237 published applications in this corpus.
Search patents in G21C- Granted patents
- 368
- Published applications
- 237
- Assignees
- 156
- Inventors
- 747
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 10 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 14 | 0 |
| 1992 | 20 | 0 |
| 1993 | 8 | 0 |
| 1994 | 11 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 16 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 12 | 13 |
| 2003 | 4 | 9 |
| 2004 | 4 | 1 |
| 2005 | 8 | 3 |
| 2006 | 1 | 4 |
| 2007 | 2 | 4 |
| 2008 | 2 | 4 |
| 2009 | 0 | 8 |
| 2010 | 1 | 6 |
| 2011 | 2 | 17 |
| 2012 | 6 | 6 |
| 2013 | 5 | 12 |
| 2014 | 9 | 12 |
| 2015 | 5 | 12 |
| 2016 | 7 | 20 |
| 2017 | 12 | 17 |
| 2018 | 11 | 10 |
| 2019 | 11 | 8 |
| 2020 | 14 | 15 |
| 2021 | 13 | 13 |
| 2022 | 9 | 13 |
| 2023 | 5 | 7 |
| 2024 | 8 | 5 |
| 2025 | 5 | 7 |
| 2026 | 9 | 9 |
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.
- Fission product extraction system and methods of use thereof6 Oct 2026US 12,755,856 B2Abilene Christian University
- Separation of fission products in a molten salt reactor via adsorbent frameworks11 Aug 2026US 12,706,225 B2Abilene Christian University
- Continuous removal of fission products from molten-salt fueled nuclear reactors23 Jun 2026US 12,665,099 B2Muons, Inc.
- Reactor containment vessel vent system16 Jun 2026US 12,658,332 B2Hitachi GE Vernova Nuclear Energy, Ltd.
- Molten salt reactor and molten salt reactor system17 Sep 2026US 2026/0279605 A1Iucf-Hyu (Industry-University Cooperation Foundation Hanyang
- Separation of fission products in a molten salt reactor via adsorbent frameworks17 Sep 2026US 2026/0279607 A1Abilene Christian University
- Metal-organic framework coatings for use in a nuclear reactor system20 Aug 2026US 2026/0245754 A1
- Metal injection system using electrolysis of metal in a nuclear power plant2 Jul 2026US 2026/0188533 A1GE-Hitachi Nuclear Energy Americas LLC
- Bottom nozzle with internal debris filter28 May 2026US 2026/0148868 A1Westinghouse Electric Corp.
Most cited
By later US patents
- Apparatus for filtering water containing radioactive substances in nuclear power plants97US 4,756,875 AKabushiki Kaisha Toshiba · 1988
- Lower tie plate strainers having double plate with offset holes for boiling water reactors58US 5,345,483 AGeneral Electric Company · 1994
- Process for decontaminating a nuclear reactor coolant system50US 5,305,360 AWestinghouse Electric Corp. · 1994
- Adsorption device for gas separation49US 4,881,958 ASiemens Aktiengesellschaft · 1989
- Nuclear fuel assembly debris filter bottom nozzle49US 4,900,507 AWestinghouse Electric Corp. · 1990