G21C 13/067
For tubes
Official title: for tubes, e.g. standpipes; Locking devices for plugs
G21C13/067 (For tubes) appears on 64 US grants and 23 published applications in this corpus.
Search patents in G21C- Granted patents
- 64
- Published applications
- 23
- Assignees
- 29
- Inventors
- 119
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 4 |
| 2019 | 4 | 2 |
| 2020 | 3 | 2 |
| 2021 | 3 | 2 |
| 2022 | 3 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fission product trap for salt pipe and pump shaft seals and methods of use thereof24 Feb 2026US 12,562,289 B2
- Method for installing extension tube in a nuclear reactor8 Aug 2023US 11,721,444 B2Westinghouse Electric Corp.
- Replacement thermal sleeve for a reactor vessel closure head penetration adapter of control rod drive mechanism8 Aug 2023US 11,721,445 B2Westinghouse Electric Corp.
- Reactor pressure vessel including pipe restraint device, and/or pipe restraint device20 Dec 2022US 11,530,769 B2GE-Hitachi Nuclear Energy Americas LLC
- Replacement thermal sleeve for a reactor vessel closure head penetration adapter of control rod drive mechanism15 Nov 2022US 11,501,887 B2Westinghouse Electric Corp.
- Fission product trap for salt pipe and pump shaft seals and methods of use thereof21 May 2026US 2026/0142046 A1
- Method for refurbishing a nuclear power plant initially comprising at least one light-water nuclear reactor (lwr), in particular a pressurised water reactor (pwr) or a boiling water reactor (bwr), with at least one integrated modular nuclear reactor (smr)18 Sep 2025US 2025/0292924 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Fission product trap for salt pipe and pump shaft seals and methods of use thereof25 Jul 2024US 2024/0249852 A1
- Replacement thermal sleeve for a reactor vessel closure head penetration adapter of control rod drive mechanism9 Mar 2023US 2023/0074289 A1Westinghouse Electric Corp.
- Method for thermal sleeve elimination6 Jan 2022US 2022/0005616 A1Westinghouse Electric Corp.
Most cited
By later US patents
- Plugging apparatus39US 4,393,899 ATokyo Shibaura Denki Kabushiki Kaisha · 1983
- Nozzle dam translocating system36US 4,959,192 ATennesse Valley Authority · 1990
- Nozzle dam remote installation system and technique36US 5,042,861 ATennessee Valley Authority · 1991
- Reactor internals core barrel hole plug35US 4,693,389 AThe Babcock & Wilcox Company · 1987
- Nozzle dam remote installation system and technique34US 4,989,818 ATennessee Valley Authority · 1991