G21C 3/326
Comprising fuel elements of different composition
Official title: comprising fuel elements of different composition; comprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
G21C3/326 (Comprising fuel elements of different composition) appears on 320 US grants and 201 published applications in this corpus.
Search patents in G21C- Granted patents
- 320
- Published applications
- 201
- Assignees
- 110
- Inventors
- 673
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 14 | 0 |
| 1987 | 19 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 12 | 0 |
| 1995 | 10 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 4 |
| 2003 | 4 | 3 |
| 2004 | 3 | 2 |
| 2005 | 0 | 3 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 3 | 8 |
| 2009 | 3 | 13 |
| 2010 | 1 | 7 |
| 2011 | 2 | 7 |
| 2012 | 3 | 11 |
| 2013 | 9 | 11 |
| 2014 | 9 | 9 |
| 2015 | 4 | 7 |
| 2016 | 4 | 7 |
| 2017 | 7 | 9 |
| 2018 | 9 | 15 |
| 2019 | 9 | 9 |
| 2020 | 6 | 10 |
| 2021 | 16 | 8 |
| 2022 | 10 | 14 |
| 2023 | 13 | 8 |
| 2024 | 9 | 18 |
| 2025 | 4 | 8 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel assembly5 May 2026US 12,620,499 B2Thorium Power, Inc.
- Nuclear fuel assembly with multi-pitch wire wrap21 Apr 2026US 12,609,209 B2TerraPower, LLC
- Nuclear reactor24 Feb 2026US 12,562,288 B2Mitsubishi Heavy Industries, Ltd.
- Reactor control device11 Nov 2025US 12,469,611 B2Rolls-Royce Smr Limited
- Modular manufacture, delivery, and assembly of nuclear reactor core systems16 Sep 2025US 12,416,175 B2TerraPower, LLC
- Chain container reactor6 Aug 2026US 2026/0229374 A1Unists
- Control rod assembly with enhanced control rod worth using 28 neutron absorber rods21 May 2026US 2026/0142044 A1Kepco Nuclear Fuel Co., Ltd.
- System and method for detecting leaks in a nuclear fuel pool assembly23 Apr 2026US 2026/0112512 A1Westinghouse Electric Corp.
- Improved nuclear fuel assembly with enhanced seismic performance and control rod worth14 Aug 2025US 2025/0259758 A1Kepco Nuclear Fuel Co., Ltd.
- Core Component Rodlet for Irradiating Isotope Targets in Pressurized Water Reactor Conditions10 Jul 2025US 2025/0226122 A1Westinghouse Electric Corp.
Most cited
By later US patents
- Axially modular fuel assembly and rod for optimal fuel utilization55US 5,009,837 AWestinghouse Electric Corp. · 1991
- Method and apparatus for producing radioisotopes44US 6,678,344 B2Framatome ANP GmbH · 2004
- Nuclear reactor for breeding U.sup.23343US 3,960,655 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976
- Reactor core41US 6,088,420 AKabushiki Kaisha Toshiba · 2000
- Transuranium elements transmuting fuel assembly40US 5,400,375 AKabushiki Kaisha Toshiba · 1995