G21D 1/003
Nuclear facilities decommissioning arrangements
Official title: {Nuclear facilities decommissioning arrangements (decontamination arrangements, treating radioactively contaminated material G21F9/00)}
G21D1/003 (Nuclear facilities decommissioning arrangements) appears on 102 US grants and 100 published applications in this corpus.
Search patents in G21D- Granted patents
- 102
- Published applications
- 100
- Assignees
- 68
- Inventors
- 292
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 2 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 5 |
| 2012 | 1 | 0 |
| 2013 | 0 | 5 |
| 2014 | 3 | 1 |
| 2015 | 1 | 7 |
| 2016 | 5 | 3 |
| 2017 | 3 | 5 |
| 2018 | 3 | 2 |
| 2019 | 3 | 3 |
| 2020 | 1 | 1 |
| 2021 | 3 | 21 |
| 2022 | 6 | 14 |
| 2023 | 15 | 5 |
| 2024 | 9 | 6 |
| 2025 | 5 | 10 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Remote-controlled dismantling robot and dismantling method for nuclear facility decommissioning22 Sep 2026US 12,744,131 B2
- Method for removing dousing tank of heavy water reactor structure11 Aug 2026US 12,706,226 B2Korea Hydro & Nuclear Power Co., Ltd.
- Apparatus for cutting curved wall of reactor structure26 May 2026US 12,636,719 B2Egun Co., Ltd.
- Method for sampling a solid object, and a system configured to sample a solid object7 Apr 2026US 12,596,060 B2Teknologian tutkimuskeskus VTT Oy
- Nuclear structure dry cutting apparatus7 Oct 2025US 12,434,408 B2Egun Co., Ltd.
- Management of structures for packaging16 Jul 2026US 2026/0204444 A1Afry Deutschland GmbH
- Nuclear instrument removal system for use with processing a nuclear instrument, associated feed and cut module, and method of processing a nuclear instrument21 May 2026US 2026/0142047 A1Hi-Tech Solutions Ltd.
- Dismantling method for metal equipments of heat transport system in containment building at nuclear power plant21 May 2026US 2026/0142048 A1Doosan Enerbility Co., Ltd.
- Method for dismantling d2o tank of heavy water reactor and dismantling apparatus21 May 2026US 2026/0142049 A1Doosan Enerbility Co., Ltd.
- Remote-Controlled Dismantling Robot and Dismantling Method for Nuclear Facility Decommissioning22 Jan 2026US 2026/0024673 A1China National Nuclear Corporation Sichuan Environmental Protection Engineering Co., Ltd.
Most cited
By later US patents
- Process for decontaminating a nuclear reactor coolant system50US 5,305,360 AWestinghouse Electric Corp. · 1994
- Method of cutting and disassembling cylindrical structure31US 5,001,870 AKajima Corporation · 1991
- Method and apparatus for cutting concrete by use of laser29US 4,568,814 AAgency of Industrial Science and Technology · 1986
- Radiation shield ring assembly and method of disassembling components of a nuclear steam generator using such assembly23US 4,299,658 AWestinghouse Electric Corp. · 1981
- Machines for dismantling decommissioned nuclear reactors20US 4,594,774 AUnited Kingdom Atomic Energy Authority · 1986