G21C 3/334
Assembling , maintenance or repair of the bundles
Official title: Assembling {, maintenance or repair of} the bundles {(assembling, maintenance or repair of other reactor components G21C19/207)}
G21C3/334 (Assembling , maintenance or repair of the bundles) appears on 273 US grants and 93 published applications in this corpus.
Search patents in G21C- Granted patents
- 273
- Published applications
- 93
- Assignees
- 73
- Inventors
- 426
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 13 | 0 |
| 1987 | 41 | 0 |
| 1988 | 16 | 0 |
| 1989 | 9 | 0 |
| 1990 | 6 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 12 | 0 |
| 1994 | 18 | 0 |
| 1995 | 8 | 0 |
| 1996 | 2 | 0 |
| 1997 | 8 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 2 | 2 |
| 2009 | 1 | 5 |
| 2010 | 2 | 5 |
| 2011 | 1 | 6 |
| 2012 | 2 | 0 |
| 2013 | 4 | 4 |
| 2014 | 3 | 4 |
| 2015 | 4 | 1 |
| 2016 | 3 | 4 |
| 2017 | 4 | 5 |
| 2018 | 4 | 2 |
| 2019 | 6 | 9 |
| 2020 | 2 | 7 |
| 2021 | 7 | 5 |
| 2022 | 7 | 7 |
| 2023 | 7 | 11 |
| 2024 | 4 | 2 |
| 2025 | 3 | 3 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel bundle with twisted ribbon fuel rodlets for nuclear thermal propulsion applications, structures for manufacture, and methods of manufacture12 May 2026US 12,626,829 B2BWXT Advanced Technologies LLC
- Process for aiding the detection of migrating bodies within a fuel assembly24 Feb 2026US 12,562,290 B2Electricite de France
- Carbide-based fuel assembly for thermal propulsion applications20 Jan 2026US 12,531,166 B2BWXT Nuclear Energy, Inc.
- Device for extracting a nuclear fuel rod or a cluster rod and extraction method using such an extraction device6 Jan 2026US 12,518,886 B2Framatome
- Device for assembling and disassembling top nozzle of nuclear fuel assembly1 Jul 2025US 12,347,578 B2Kepco Nuclear Fuel Co., Ltd.
- Spot-welding fixture for spacer grid of nuclear fuel assembly3 Sep 2026US 2026/0260771 A1Kepco Nuclear Fuel Co., Ltd.
- Fuel bundle with twisted ribbon fuel rodlets for nuclear thermal propulsion applications, structures for manufacture, and methods of manufacture6 Aug 2026US 2026/0229376 A1BWXT Advanced Technologies LLC
- Stackable fuel block and method of constructing same6 Aug 2026US 2026/0229377 A1Westinghouse Electric Corp.
- Improved nuclear fuel assembly with enhanced seismic performance and control rod worth14 Aug 2025US 2025/0259758 A1Kepco Nuclear Fuel Co., Ltd.
- Device for assembling and disassembling top nozzle of nuclear fuel assembly23 Jan 2025US 2025/0029739 A1Kepco Nuclear Fuel Co., Ltd.
Most cited
By later US patents
- Releasable locking device43US 3,971,575 ACombustion Engineering, Inc. · 1976
- Nuclear fuel assembly control rod drive thimble to bottom nozzle connector42US 7,453,972 B2Westinghouse Electric Corp. · 2008
- Shape-memory alloys in the construction of nuclear fuel spacer grids41US 5,299,246 ACombustion Engineering, Inc. · 1994
- Locking assembly for nuclear fuel bundles38US 5,268,948 ADuke Power Company · 1993
- PWR Integral tie plate and locking mechanism37US 4,219,386 AExxon Nuclear Company, Inc. · 1980