G21F 9/001
Decontamination of contaminated objects, apparatus, clothes, food
Official title: {Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof}
G21F9/001 (Decontamination of contaminated objects, apparatus, clothes, food) appears on 346 US grants and 208 published applications in this corpus.
Search patents in G21F- Granted patents
- 346
- Published applications
- 208
- Assignees
- 195
- Inventors
- 838
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 13 | 0 |
| 1988 | 8 | 0 |
| 1989 | 13 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 22 | 0 |
| 1993 | 10 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 12 | 0 |
| 1997 | 9 | 0 |
| 1998 | 15 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 1 |
| 2002 | 10 | 12 |
| 2003 | 6 | 7 |
| 2004 | 5 | 6 |
| 2005 | 5 | 4 |
| 2006 | 2 | 5 |
| 2007 | 1 | 2 |
| 2008 | 2 | 6 |
| 2009 | 4 | 6 |
| 2010 | 5 | 7 |
| 2011 | 2 | 8 |
| 2012 | 3 | 5 |
| 2013 | 7 | 11 |
| 2014 | 9 | 15 |
| 2015 | 7 | 16 |
| 2016 | 11 | 11 |
| 2017 | 9 | 7 |
| 2018 | 11 | 6 |
| 2019 | 8 | 11 |
| 2020 | 7 | 9 |
| 2021 | 6 | 19 |
| 2022 | 15 | 10 |
| 2023 | 7 | 6 |
| 2024 | 2 | 9 |
| 2025 | 7 | 5 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Chemical decontamination method and chemical decontamination apparatus16 Jun 2026US 12,658,333 B2Hitachi GE Vernova Nuclear Energy, Ltd.
- Apparatus for contained decontamination12 May 2026US 12,623,261 B2Soletanche Freyssinet
- Methods for recycling metals from the nuclear industry24 Feb 2026US 12,562,291 B2
- Grit blasting17 Feb 2026US 12,555,698 B2Ddp Specialty Electronic Materis US, LLC.
- Waste liquid recovery system for large storage tank2 Dec 2025US 12,488,905 B2
- Laser ablation decontamination system and method of using same1 Oct 2026US 2026/0301983 A1
- Apparatus for classifying radioactive waste, and system for classifying nuclear facility dismantlement waste comprising same27 Aug 2026US 2026/0251808 A1Bns Co., Ltd.
- Spectral Selectors for radiactive capture and fission23 Jul 2026US 2026/0213031 A1
- Method and apparatus for removing radionuclides from radioactive metal waste30 Apr 2026US 2026/0120906 A1Doosan Enerbility Co., Ltd.
- Dismantling and decontamination system and method of bioprotective concrete of pwr type nuclear power plant27 Nov 2025US 2025/0364149 A1Korea Hydro & Nuclear Power Co., Ltd.
Most cited
By later US patents
- Effective dry etching process of actinide oxides and their mixed oxides in CF4/O2/N2 plasma76US 6,699,398 B1Hanyang Hak Won Co., Ltd. · 2004
- Decontamination apparatus for chemically and/or radioactively contaminated tools and equipment71US 4,865,061 AQuadrex HPS, Inc. · 1989
- Installation for cleaning clothes and removal of particulate contaminants especially from clothing contaminated by radioactive particles61US 4,601,181 A1986
- Method for removing alkaline sulfate scale58US 4,980,077 AMobil Oil Corporation · 1990
- System and method for cleaning the inner surface of tubular members50US 5,046,289 AWestinghouse Electric Corp. · 1991