G21C 13/04
Arrangements for expansion and contraction
G21C13/04 (Arrangements for expansion and contraction) appears on 45 US grants and 42 published applications in this corpus.
Search patents in G21C- Granted patents
- 45
- Published applications
- 42
- Assignees
- 27
- Inventors
- 84
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 4 |
| 2017 | 1 | 3 |
| 2018 | 2 | 2 |
| 2019 | 3 | 2 |
| 2020 | 3 | 1 |
| 2021 | 4 | 1 |
| 2022 | 1 | 6 |
| 2023 | 2 | 1 |
| 2024 | 4 | 7 |
| 2025 | 3 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Passive heat removal system for nuclear reactors14 Jul 2026US 12,683,034 B2TerraPower, LLC
- Electrical penetration3 Mar 2026US 12,567,507 B2Hitachi GE Vernova Nuclear Energy, Ltd.
- Molten salt nuclear reactor core having a bulbous shape13 Jan 2026US 12,525,364 B2Copenhagen Atomics A/S
- Method of constructing a nuclear reactor having reactor core and control elements supported by reactor vessel head18 Nov 2025US 12,476,015 B2TerraPower, LLC
- Thermal expansion support system and methods of use thereof11 Mar 2025US 12,249,434 B2Abilene Christian University
- Heat exchanger bellows seal assembly and methods of use10 Sep 2026US 2026/0269092 A1Natura Resources LLC
- Molten Salt Nuclear Reactor Core and System7 May 2026US 2026/0128184 A1Copenhagen Atomics A/S
- Curvilinear electromagnetic pump30 Apr 2026US 2026/0121503 A1TerraPower, LLC
- Nuclear reactor provided with a core support system16 Oct 2025US 2025/0322972 A1Newcleo Ltd
- Inertial energy coastdown for electromagnetic pump5 Jun 2025US 2025/0183776 A1TerraPower, LLC
Most cited
By later US patents
- Multiple shell pressure vessel22US 4,767,593 A1988
- Reactor pressure vessel support14US 4,115,194 AThe Babcock & Wilcox Company · 1978
- Seismic attenuation system for a nuclear reactor13US 9,881,703 B2NuScale Power, LLC · 2018
- Nuclear core positioning system12US 4,135,974 AWestinghouse Electric Corp. · 1979
- BWR jet pump wedge keeper10US 6,320,923 B2Westinghouse Electric Corp. · 2001