G21C 15/257
Using heat-pipes
Official title: using heat-pipes {(in general F28D, F28F)}
G21C15/257 (Using heat-pipes) appears on 69 US grants and 88 published applications in this corpus.
Search patents in G21C- Granted patents
- 69
- Published applications
- 88
- Assignees
- 49
- Inventors
- 210
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 6 |
| 2017 | 1 | 0 |
| 2018 | 2 | 6 |
| 2019 | 4 | 2 |
| 2020 | 5 | 3 |
| 2021 | 3 | 5 |
| 2022 | 7 | 15 |
| 2023 | 9 | 16 |
| 2024 | 10 | 12 |
| 2025 | 7 | 9 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Nuclear fuel rods and heat pipes in a graphite moderator matrix for a micro-reactor, with the fuel rods having fuel pellets in a BeO sleeve7 Jul 2026US 12,676,245 B2Westinghouse Electric Corp.
- Nuclear reactor system arranged to inject material into heat pipes to suppress a fire26 May 2026US 12,640,276 B1Triad National Security, LLC
- Compact passive decay heat removal system for transportable micro-reactor applications26 May 2026US 12,640,278 B2Westinghouse Electric Corp.
- Heat pipe measurement systems and methods10 Sep 2026US 2026/0269091 A1Westinghouse Electric Corp.
- Devices, systems, and methods for cooling a nuclear reactor with hydride moderators20 Aug 2026US 2026/0245753 A1Westinghouse Electric Corp.
- Hamr pebble reactor23 Jul 2026US 2026/0213027 A1Odin Electric, Inc.
- Small moderated nuclear reactors9 Jul 2026US 2026/0196368 A1Triad National Security, LLC
- Heat exchangers28 May 2026US 2026/0148870 A1Nano Nuclear Energy Inc.
Most cited
By later US patents
- 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 three-phase heat tube for the protection of apparatus from exceeding maximum or minimum safe working temperatures47US 5,195,575 A1993
- Passive heat transfer means for nuclear reactors42US 4,478,784 AThe United States of America as represented by the United States Department of Energy · 1984
- Nuclear reactor heat pipe31US 5,684,848 AGeneral Electric Company · 1997
- Emergency heat removal system for a nuclear reactor26US 3,935,063 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976