G21C 3/3305
Lower nozzle
Official title: {Lower nozzle}
G21C3/3305 (Lower nozzle) appears on 90 US grants and 84 published applications in this corpus.
Search patents in G21C- Granted patents
- 90
- Published applications
- 84
- Assignees
- 52
- Inventors
- 264
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 4 |
| 2008 | 0 | 3 |
| 2009 | 3 | 1 |
| 2010 | 1 | 3 |
| 2011 | 2 | 5 |
| 2012 | 3 | 8 |
| 2013 | 2 | 9 |
| 2014 | 4 | 2 |
| 2015 | 3 | 3 |
| 2016 | 4 | 4 |
| 2017 | 4 | 4 |
| 2018 | 2 | 5 |
| 2019 | 6 | 5 |
| 2020 | 5 | 7 |
| 2021 | 5 | 4 |
| 2022 | 8 | 6 |
| 2023 | 3 | 4 |
| 2024 | 4 | 2 |
| 2025 | 3 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Debris filtering arrangement for nuclear fuel assembly bottom nozzle and bottom nozzle including same14 Jul 2026US 12,683,033 B2Westinghouse Electric Corp.
- Bottom nozzle with internal debris filter20 Jan 2026US 12,531,164 B2Westinghouse Electric Corp.
- Debris filter for a nuclear fuel assembly bottom end part and method of manufacturing such a debris filter9 Sep 2025US 12,412,673 B2Framatome
- Lower end fitting locating pins5 Aug 2025US 12,381,015 B2BWXT mPower, Inc.
- Fuel assembly arrangement for retaining fuel rod end plug to bottom nozzle27 May 2025US 12,315,646 B2Westinghouse Electric Corp.
- Bottom nozzle with internal debris filter28 May 2026US 2026/0148868 A1Westinghouse Electric Corp.
- Inserts and methods for controlling fuel assembly coolant flow rates30 Apr 2026US 2026/0120896 A1
- Fuel Assembly and Method for Producing Fuel Assembly8 Jan 2026US 2026/0011457 A1Hitachi GE Vernova Nuclear Energy, Ltd.
- Improved nuclear fuel assembly with enhanced seismic performance and control rod worth14 Aug 2025US 2025/0259758 A1Kepco Nuclear Fuel Co., Ltd.
- Debris filtering arrangement for nuclear fuel assembly bottom nozzle and bottom nozzle including same19 Sep 2024US 2024/0312646 A1Westinghouse Electric Corp.
Most cited
By later US patents
- Nuclear fuel assembly58US 4,560,532 AWestinghouse Electric Corp. · 1985
- Fuel assembly bottom nozzle with integral debris trap56US 4,684,495 AWestinghouse Electric Corp. · 1987
- Nuclear fuel assembly41US 3,954,560 ACommissariat A L' Energie Atomique · 1976
- Reversible BWR fuel assembly and method of using same30US 4,655,995 AWestinghouse Electric Corp. · 1987
- Fuel assembly for a nuclear reactor26US 3,992,259 ACombustion Engineering, Inc. · 1976