G21F 9/125
By solvent extraction
Official title: {by solvent extraction}
G21F9/125 (By solvent extraction) appears on 88 US grants and 61 published applications in this corpus.
Search patents in G21F- Granted patents
- 88
- Published applications
- 61
- Assignees
- 65
- Inventors
- 271
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 2 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 4 | 2 |
| 2005 | 0 | 1 |
| 2006 | 3 | 1 |
| 2007 | 2 | 3 |
| 2008 | 0 | 1 |
| 2009 | 2 | 3 |
| 2010 | 4 | 2 |
| 2011 | 2 | 2 |
| 2012 | 1 | 8 |
| 2013 | 1 | 4 |
| 2014 | 4 | 5 |
| 2015 | 5 | 4 |
| 2016 | 8 | 6 |
| 2017 | 2 | 2 |
| 2018 | 3 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the removal of radionuclides from aqueous radioactive waste17 Feb 2026US 12,555,697 B2Dept of Atomic Energy Government of India
- Method for concentrating liquid radioactive waste28 Oct 2025US 12,456,558 B2State Atomic Energy Corporation "Rosatom" On Behalf of the Russian Federation
- Separation of metal ions by liquid-liquid extraction4 Jun 2024US 12,002,595 B2The Regents of the University of California
- Methods of separating medical isotopes from uranium solutions4 Aug 2020US 10,734,126 B2Shine Medical Technologies, Inc.
- Method for isolating americium from liquid radioactive waste and for separating americium from rare earth elements17 Mar 2020US 10,590,513 B2State Atomic Energy Corporation "Rosatom" On Behalf of the Russian Federation
- Method for integrated treatment of radioactive liquid waste generated during decommissioning of nuclear power plant18 Jun 2026US 2026/0171277 A1LCGen Co., Ltd.
- Metal-organic cages, methods of making, and methods of use thereof10 Jul 2025US 2025/0223305 A1Virginia Tech Intellectual Properties, Inc.
- Cyclic amine monoamides for extracting uranium(vi) and plutonium(iv) and for separating them without reducing plutonium(iv)12 Dec 2024US 2024/0410034 A1
- Separation of metal ions by liquid-liquid extraction12 Sep 2024US 2024/0304351 A1Fred Hutchinson Cancer Research Center
- Method for stripping uranium(vi) and an actinide(iv) from an organic solution by oxalic precipitation7 Mar 2024US 2024/0079157 A1
Most cited
By later US patents
- Supercritical fluid extraction80US 5,356,538 AIdaho Research Foundation, Inc. · 1994
- Extraction of metals using supercritical fluid and chelate forming legand71US 5,730,874 AIdaho Research Foundation, Inc. · 1998
- Methods and devices for the separation of radioactive rare earth metal isotopes from their alkaline earth metal precursors59US 5,225,173 AIdaho Research Foundation, Inc. · 1993
- Hydroxamic acid crown ethers58US 5,274,129 AIdaho Research Foundation, Inc. · 1993
- Fluid extraction34US 5,965,025 AIdaho Research Foundation, Inc. · 1999