G21C 15/02
Arrangements or disposition of passages in which heat is transferred to the
Official title: Arrangements or disposition of passages in which heat is transferred to the coolant; {Coolant flow control devices (G21C19/04 takes precedence; coolant flow control through fuel assemblies, e.g. flow restrictors G21C3/322)}
G21C15/02 (Arrangements or disposition of passages in which heat is transferred to the) appears on 342 US grants and 348 published applications in this corpus.
Search patents in G21C- Granted patents
- 342
- Published applications
- 348
- Assignees
- 155
- Inventors
- 946
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 12 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 3 |
| 2004 | 2 | 2 |
| 2005 | 2 | 1 |
| 2006 | 2 | 4 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 5 |
| 2010 | 0 | 6 |
| 2011 | 1 | 6 |
| 2012 | 0 | 8 |
| 2013 | 4 | 10 |
| 2014 | 7 | 9 |
| 2015 | 3 | 19 |
| 2016 | 8 | 12 |
| 2017 | 13 | 22 |
| 2018 | 8 | 28 |
| 2019 | 13 | 16 |
| 2020 | 41 | 35 |
| 2021 | 24 | 33 |
| 2022 | 28 | 38 |
| 2023 | 23 | 23 |
| 2024 | 25 | 30 |
| 2025 | 21 | 12 |
| 2026 | 16 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nuclear modular isolated reactor support system assembly and modules29 Sep 2026US 12,749,587 B2GE-Hitachi Nuclear Energy Americas LLC
- Nuclear power generation system and nuclear reactor unit8 Sep 2026US 12,731,699 B2Mitsubishi Heavy Industries, Ltd.
- Heat pipe fuel element and fission reactor incorporating same, particularly having phyllotaxis spacing pattern of heat pipe fuel elements, and method of manufacture8 Sep 2026US 12,731,700 B2BWXT Advanced Technologies LLC
- Nuclear reactors having liquid metal alloy fuels and/or moderators4 Aug 2026US 12,700,513 B2
- Passive heat removal system for nuclear reactors14 Jul 2026US 12,683,034 B2TerraPower, LLC
- Molten fuel reactor thermal management configurations24 Sep 2026US 2026/0290630 A1c/o TerraPower, LLC
- Non-integral feedwater plenum24 Sep 2026US 2026/0290635 A1NuScale Power, LLC
- Cooled headspace utilizing nitrogen-to-nitrogen heat exchanger10 Sep 2026US 2026/0269093 A1Natura Resources LLC
- Blanket for fusion reactor27 Aug 2026US 2026/0253751 A1Kyoto Fusioneering Ltd.
- Internal flow structures for molten salt reactors27 Aug 2026US 2026/0253754 A1
Most cited
By later US patents
- Device for cooling containments53US 5,564,498 ARobatel · 1996
- Passive containment cooling system52US 5,049,353 AWestinghouse Electric Corp. · 1991
- Molten fuel-salt reactor42US 4,045,286 AElectricite de France (Service National) · 1977
- Fast reactor having reflector control system33US 5,420,897 ACentral Research Institute of Electric Power Industry · 1995
- Modular head assembly and method of retrofitting existing nuclear reactor facilities32US 4,678,623 AWestinghouse Electric Corp. · 1987