G21C 21/02
Manufacture of fuel elements or breeder elements contained in non-active casings
G21C21/02 (Manufacture of fuel elements or breeder elements contained in non-active casings) appears on 396 US grants and 420 published applications in this corpus.
Search patents in G21C- Granted patents
- 396
- Published applications
- 420
- Assignees
- 179
- Inventors
- 983
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 11 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 4 |
| 2003 | 2 | 2 |
| 2004 | 4 | 2 |
| 2005 | 1 | 2 |
| 2006 | 0 | 8 |
| 2007 | 1 | 8 |
| 2008 | 1 | 5 |
| 2009 | 7 | 11 |
| 2010 | 5 | 23 |
| 2011 | 4 | 15 |
| 2012 | 4 | 9 |
| 2013 | 11 | 15 |
| 2014 | 10 | 27 |
| 2015 | 19 | 17 |
| 2016 | 13 | 21 |
| 2017 | 25 | 32 |
| 2018 | 24 | 22 |
| 2019 | 23 | 16 |
| 2020 | 26 | 42 |
| 2021 | 25 | 26 |
| 2022 | 20 | 31 |
| 2023 | 16 | 29 |
| 2024 | 22 | 24 |
| 2025 | 14 | 13 |
| 2026 | 14 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G21C 21/10By extrusion, drawing, or stretching by rolling28
- G21C 21/04By vibrational compaction or tamping of fuel in the jacket19
- G21C 21/08By a slip-fit cladding process by crimping the jacket around the fuel12
- G21C 21/14By plating the fuel in a fluid10
- G21C 21/12By hydrostatic or thermo-pneumatic canning in general by pressing without lengthening5
- G21C 21/16By casting or dipping techniques5
- G21C 21/06By rotatable swaging of the jacket around the fuel1
Recent patents
- TRISO architecture for palladium and silicon carbide interaction mitigation29 Sep 2026US 12,749,588 B2UT-Battelle, LLC
- Fuel element with multi-smear density fuel4 Aug 2026US 12,700,514 B2TerraPower, LLC
- Fuel cladding covered by a mesh4 Aug 2026US 12,700,515 B2Westinghouse Electric Corp.
- Method for manufacturing a coated nuclear reactor component having a marking30 Jun 2026US 12,671,003 B2Framatome
- Nuclear fuel rod and manufacturing method23 Jun 2026US 12,665,097 B2Framatome
- Use of oxidation resistant coatings to increase thin walled cladding tensile strength to increase uranium loadings1 Oct 2026US 2026/0301977 A1Westinghouse Electric Corp.
- Swell Resistant Fuel Pellets and Methods of Manufacture Thereof20 Aug 2026US 2026/0245750 A1
- Coextruded fuel pellets and methods of manufacture thereof20 Aug 2026US 2026/0245755 A1
- Integral burnable coating for resisting fuel fragmentation, relocation, and dispersal and pellet-cladding bond formation6 Aug 2026US 2026/0229375 A1Westinghouse Electric Corp.
- 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
Most cited
By later US patents
- Method for making fuel cladding having zirconium barrier layers and inner liners35US 5,383,228 AGeneral Electric Company · 1995
- Manufacture of zirconium cladding tube with internal liner28US 5,620,536 AABB Atom AB · 1997
- Smooth collet for pulling fuel rods28US 6,895,067 B2Framatome ANP GmbH · 2005
- Fully ceramic nuclear fuel and related methods28US 9,299,464 B2Logos Technologies, LLC · 2016
- Method of preparing fuel cladding having an alloyed zirconium barrier layer25US 5,469,481 AGeneral Electric Company · 1995