G21C 15/00
Cooling arrangements within the pressure vessel containing the core
Official title: Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
G21C15/00 (Cooling arrangements within the pressure vessel containing the core) appears on 1,368 US grants and 1,207 published applications in this corpus.
Search patents in G21C- Granted patents
- 1,368
- Published applications
- 1,207
- Assignees
- 366
- Inventors
- 2,683
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 30 | 0 |
| 1978 | 23 | 0 |
| 1979 | 9 | 0 |
| 1980 | 15 | 0 |
| 1981 | 12 | 0 |
| 1982 | 15 | 0 |
| 1983 | 12 | 0 |
| 1984 | 11 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 28 | 0 |
| 1988 | 28 | 0 |
| 1989 | 27 | 0 |
| 1990 | 19 | 0 |
| 1991 | 26 | 0 |
| 1992 | 44 | 0 |
| 1993 | 32 | 0 |
| 1994 | 30 | 0 |
| 1995 | 12 | 0 |
| 1996 | 17 | 0 |
| 1997 | 20 | 0 |
| 1998 | 10 | 0 |
| 1999 | 17 | 0 |
| 2000 | 9 | 0 |
| 2001 | 17 | 1 |
| 2002 | 15 | 11 |
| 2003 | 10 | 14 |
| 2004 | 12 | 19 |
| 2005 | 13 | 14 |
| 2006 | 3 | 13 |
| 2007 | 5 | 8 |
| 2008 | 3 | 22 |
| 2009 | 7 | 34 |
| 2010 | 12 | 42 |
| 2011 | 19 | 35 |
| 2012 | 18 | 70 |
| 2013 | 32 | 74 |
| 2014 | 44 | 61 |
| 2015 | 32 | 70 |
| 2016 | 46 | 65 |
| 2017 | 58 | 68 |
| 2018 | 64 | 74 |
| 2019 | 57 | 54 |
| 2020 | 91 | 84 |
| 2021 | 60 | 63 |
| 2022 | 71 | 80 |
| 2023 | 50 | 68 |
| 2024 | 55 | 71 |
| 2025 | 43 | 38 |
| 2026 | 38 | 54 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G21C 15/18Emergency cooling arrangements635
- G21C 15/24Promoting flow of the coolant526
- G21C 15/02Arrangements or disposition of passages in which heat is transferred to the342
- G21C 15/28Selection of specific coolants75
- G21C 15/16Comprising means for separating liquid and steam67
- G21C 15/22Structural association of coolant tubes with headers31
- G21C 15/20Partitions or thermal insulation between fuel channel and moderator9
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Most cited
By later US patents
- Gas cooled nuclear reactor346US 4,504,439 AHochtemperatur-Reaktorbau GmbH · 1985
- Method and apparatus for inhibiting oxidation in pumps for pumping molten metal121US 5,676,520 A1997
- Liquid metal pump118US 4,360,314 AThe United States of America as represented by the United States Department of Energy · 1982
- Underground nuclear power station using self-regulating heat-pipe controlled reactors98US 4,851,183 AThe United States of America as represented by the United States Department of Energy · 1989
- Passive safety system for a pressurized water nuclear reactor81US 4,753,771 AWestinghouse Electric Corp. · 1988