G21C 3/3408
Compact spacer grids
Official title: {Compact spacer grids, e.g. made of a plate or a blade}
G21C3/3408 (Compact spacer grids) appears on 8 US grants and 6 published applications in this corpus.
Search patents in G21C- Granted patents
- 8
- Published applications
- 6
- Assignees
- 10
- Inventors
- 22
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Nuclear power generator and fuel cartridges having variable electric load capacity to power a ship propeller4 Feb 2025US 12,217,879 B2Carbon Free Holdings LLC
- Nuclear power generator, fuel cartridges, and cooling tubes for nuclear power generator, and related methods6 Dec 2022US 11,521,756 B2Carbon Free Holdings LLC
- Modular basket assembly for fuel assemblies11 May 2021US 11,004,571 B2TN Americas LLC
- Bi-alloy spacer grid and associated methods24 Nov 2009US 7,623,612 B2Westinghouse Electric Corp.
- Spacer-grid for a fuel assembly of a light water nuclear reactor12 Jun 1990US 4,933,138 ACogema
- Nuclear power generator, fuel cartridges for nuclear power generator, and related methods11 Jul 2024US 2024/0233965 A9Carbon Free Holdings LLC
- Nuclear power generator, fuel cartridges for nuclear power generator, and related methods25 Apr 2024US 2024/0136077 A1Carbon Free Holdings LLC
- Nuclear power generator, fuel cartridges for nuclear power generator, and related methods10 Jun 2021US 2021/0174976 A1Carbon Free Holdings LLC
- Modular basket assembly for fuel assemblies20 Jun 2019US 2019/0189295 A1TN Americas LLC
- Segmented fuel rod bundle designs using fixed spacer plates28 May 2009US 2009/0135989 A1GE-Hitachi Nuclear Energy Americas LLC
Most cited
By later US patents
- Spacer-grid for a fuel assembly of a light water nuclear reactor17US 4,933,138 ACogema · 1990
- Spacer grid for fuel elements and method of production8US 4,306,937 AKraftwerk Union Aktiengesellschaft · 1981
- Nuclear reactor fuel element7US 3,940,314 ASiemens Aktiengesellschaft · 1976
- Spacer grid assembly and locking mechanism6US 4,312,706 AThe United States of America as represented by the United States Department of Energy · 1982
- Bi-alloy spacer grid and associated methods3US 7,623,612 B2Westinghouse Electric Corp. · 2009