G21F 9/20
Disposal of liquid waste
G21F9/20 (Disposal of liquid waste) appears on 149 US grants and 102 published applications in this corpus.
Search patents in G21F- Granted patents
- 149
- Published applications
- 102
- Assignees
- 101
- Inventors
- 301
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 5 |
| 2010 | 0 | 2 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 5 | 6 |
| 2014 | 5 | 8 |
| 2015 | 6 | 2 |
| 2016 | 4 | 5 |
| 2017 | 3 | 5 |
| 2018 | 5 | 4 |
| 2019 | 7 | 7 |
| 2020 | 5 | 10 |
| 2021 | 8 | 5 |
| 2022 | 7 | 9 |
| 2023 | 5 | 5 |
| 2024 | 3 | 3 |
| 2025 | 4 | 1 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Monitoring a hazardous waste repository11 Aug 2026US 12,703,017 B2Deep Isolation, Inc.
- Devices, systems, and methods for closure of deep geological nuclear waste disposal repository14 Apr 2026US 12,603,189 B2
- Process and installation for the destruction of radioactive sodium3 Feb 2026US 12,542,219 B2Framatome
- Hazardous waste disposal using salt6 Jan 2026US 12,518,888 B2Deep Isolation, Inc.
- Systems and methods for low level waste disposal13 May 2025US 12,300,400 B2
- Manufacturing facility6 Aug 2026US 2026/0225060 A1
- Supply device for supplying liquid waste to low-temperature melting furnace, and supply method using same23 Jul 2026US 2026/0210635 A1Korea Hydro & Nuclear Power Co., Ltd.
- Liquid radioactive waste input system25 Jun 2026US 2026/0179801 A1Korea Hydro & Nuclear Power Co., Ltd.
- Method for integrated treatment of radioactive liquid waste generated during decommissioning of nuclear power plant18 Jun 2026US 2026/0171277 A1LCGen Co., Ltd.
- Fire impact minimization system of spent nuclear fuel storage facility21 May 2026US 2026/0142052 A1Kepco Engineering & Construction Company, Inc.
Most cited
By later US patents
- Method and apparatus for hydraulic embedment of waste in subterranean formations85US 5,318,382 A1994
- Method and apparatus for subterranean containment of hazardous waste material78US 5,387,741 A1995
- Pumpable/injectable phosphate-bonded ceramics75US 6,204,214 B1The University of Chicago · 2001
- Removal of ions from a bulk source by electropotential ion transport using a host receptor matrix64US 5,489,370 AIonex · 1996
- Transitory storage for highly-radioactive wastes63US 4,634,875 AKernforschungsanlage Julich Gesellschaft mit beschrankter Haftung · 1987