G21C 3/20
With coating on fuel or on inside of casing
Official title: with coating on fuel or on inside of casing; with non-active interlayer between casing and active material {with multiple casings or multiple active layers}
G21C3/20 (With coating on fuel or on inside of casing) appears on 157 US grants and 120 published applications in this corpus.
Search patents in G21C- Granted patents
- 157
- Published applications
- 120
- Assignees
- 72
- Inventors
- 373
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 2 |
| 2002 | 0 | 2 |
| 2003 | 2 | 2 |
| 2004 | 3 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 3 | 6 |
| 2015 | 2 | 8 |
| 2016 | 5 | 1 |
| 2017 | 11 | 12 |
| 2018 | 6 | 12 |
| 2019 | 6 | 8 |
| 2020 | 6 | 13 |
| 2021 | 9 | 8 |
| 2022 | 7 | 10 |
| 2023 | 8 | 10 |
| 2024 | 5 | 6 |
| 2025 | 4 | 1 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cladding covered by a mesh4 Aug 2026US 12,700,515 B2Westinghouse Electric Corp.
- Multi-layered nuclear fuel cladding and method for manufacturing multi-layered nuclear fuel cladding9 Jun 2026US 12,651,673 B2Gachon University of Industry-Academic Cooperation Foundation
- Carbide-based fuel assembly for thermal propulsion applications20 Jan 2026US 12,531,166 B2BWXT Nuclear Energy, Inc.
- Method of forming a unitary nuclear fuel segment by heat bonding a thermally conductive layer deposited on a first fuel layer to a thermally conductive layer deposited on a second fuel layer13 Jan 2026US 12,525,368 B2Westinghouse Electric Corp.
- Engineered SiC-SiC composite and monolithic SiC layered structures16 Sep 2025US 12,417,853 B2General Atomics
- Integral burnable coating for resisting fuel fragmentation, relocation, and dispersal and pellet-cladding bond formation6 Aug 2026US 2026/0229375 A1Westinghouse Electric Corp.
- Nuclear fuel pellet with radially variable enrichment23 Jul 2026US 2026/0213028 A1
- Fuel cladding interactions (fci) resistant coating and methods of making the same18 Jun 2026US 2026/0168108 A1Uchicago Argonne, LLC
- Nuclear fuel assembly and a method of manufacture thereof28 May 2026US 2026/0148872 A1Westinghouse Electric Corp.
- Fuel Assembly and Method for Producing Fuel Assembly8 Jan 2026US 2026/0011457 A1Hitachi GE Vernova Nuclear Energy, Ltd.
Most cited
By later US patents
- Nuclear fuel element49US 4,200,492 AGeneral Electric Company · 1980
- Sputtering process burnable poison coating47US 5,272,735 ACombustion Engineering, Inc. · 1993
- Method of manufacturing a tube having a film on its inner peripheral surface and apparatus for manufacturing the same45US 5,935,391 ANissin Electric Co., Ltd. · 1999
- Paint compositions43US 4,035,265 AThe Research Association of British, Paint, Colour & Varnish Manufacturers · 1977
- Nuclear fuel element having oxidation resistant cladding42US 4,894,203 AGeneral Electric Company · 1990