G21C 3/344
Formed of assembled tubular elements
Official title: formed of assembled tubular elements
G21C3/344 (Formed of assembled tubular elements) appears on 64 US grants and 22 published applications in this corpus.
Search patents in G21C- Granted patents
- 64
- Published applications
- 22
- Assignees
- 26
- Inventors
- 138
- Latest grant
- 19 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 5 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Tube grid cell for a nuclear fuel bundle19 Nov 2024US 12,148,540 B2Westinghouse Electric Sweden AB
- Spacer grid using tubular cells26 Mar 2024US 11,942,230 B2Westinghouse Electric Corp.
- Spacer grid using tubular cells with mixing vanes27 Oct 2020US 10,818,402 B2Westinghouse Electric Corp.
- Fuel channel for a nuclear power boiling water reactor23 Apr 2019US 10,269,459 B2Westinghouse Electric Sweden AB
- Optimized flower tubes and optimized advanced grid configurations13 Nov 2018US 10,128,005 B2Westinghouse Electric Corp.
- Improved nuclear fuel assembly with enhanced seismic performance and control rod worth14 Aug 2025US 2025/0259758 A1Kepco Nuclear Fuel Co., Ltd.
- Spacer grid of nuclear fuel assembly22 Jun 2023US 2023/0197297 A1Kepco Nuclear Fuel Co., Ltd.
- Tube Grid Cell8 Dec 2022US 2022/0392652 A1Westinghouse Electric Sweden AB
- Spacer grid using tubular cells with mixing vanes1 Apr 2021US 2021/0098140 A1Westinghouse Electric Corp.
- Spacer Grid Using Tubular Cells With Mixing Vanes4 Oct 2018US 2018/0286524 A1Westinghouse Electric Corp.
Most cited
By later US patents
- Nuclear fuel assembly spacer44US 4,508,679 AGeneral Electric Company · 1985
- Composite spacer with Inconel grid and Zircaloy band38US 5,089,221 AGeneral Electric Company · 1992
- Swirl vanes in inconel spacer34US 5,186,891 AGeneral Electric Company · 1993
- Nuclear fuel spacer assembly with debris guide31US 7,561,654 B2Global Nuclear Fuel - Americas, LLC · 2009
- Fuel assembly and fuel spacer29US 5,112,571 AHitachi, Ltd. · 1992