G21C 19/46
Aqueous processes
Official title: Aqueous processes {, e.g. by using organic extraction means, including the regeneration of these means}
G21C19/46 (Aqueous processes) appears on 223 US grants and 108 published applications in this corpus.
Search patents in G21C- Granted patents
- 223
- Published applications
- 108
- Assignees
- 127
- Inventors
- 623
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 9 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 11 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 7 | 2 |
| 2003 | 4 | 4 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 4 |
| 2007 | 2 | 1 |
| 2008 | 1 | 5 |
| 2009 | 3 | 8 |
| 2010 | 4 | 10 |
| 2011 | 6 | 5 |
| 2012 | 3 | 11 |
| 2013 | 9 | 9 |
| 2014 | 12 | 5 |
| 2015 | 7 | 2 |
| 2016 | 6 | 6 |
| 2017 | 5 | 2 |
| 2018 | 4 | 6 |
| 2019 | 7 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 5 |
| 2022 | 1 | 1 |
| 2023 | 4 | 4 |
| 2024 | 2 | 7 |
| 2025 | 6 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for concentrating liquid radioactive waste28 Oct 2025US 12,456,558 B2State Atomic Energy Corporation "Rosatom" On Behalf of the Russian Federation
- Installation and method for converting uranium hexafluoride to uranium dioxide12 Aug 2025US 12,384,693 B2Framatome
- Remix—fuel for a nuclear fuel cycle10 Jun 2025US 12,327,645 B2Federal State Unitary Enterprise “Mining and Chemical Combine” (Fsue “Mcc”)
- Separation apparatus for high-level nuclear waste8 Apr 2025US 12,272,467 B2
- Modular, integrated, automated, compact, and proliferation-hardened method to chemically recycle used nuclear fuel (UNF) originating from nuclear reactors to recover a mixture of transuranic (TRU) elements for advanced reactor fuel to recycle uranium and zirconium25 Mar 2025US 12,260,967 B2Curio Solutions LLC
- Two-step chloride volatility process for separating uranium and transuranic elements from radioactive waste6 Aug 2026US 2026/0229378 A1Brigham Young University
- Installation and method for converting uranium hexafluoride to uranium dioxide8 Jan 2026US 2026/0008689 A1Framatome
- Cyclic amine monoamides for extracting uranium(vi) and plutonium(iv) and for separating them without reducing plutonium(iv)12 Dec 2024US 2024/0410034 A1
- Method for controlling metal dissolution using an electrical current31 Oct 2024US 2024/0363260 A1Battelle Savannah River Alliance, LLC
- Separation of metal ions by liquid-liquid extraction12 Sep 2024US 2024/0304351 A1Fred Hutchinson Cancer Research Center
Most cited
By later US patents
- Process and apparatus for oxidizing or reducing dissolved substance64US 4,774,026 AHitachi, Ltd. · 1988
- Supported liquid membrane separation52US 6,086,769 ACommodore Separation Technologies, Inc. · 2000
- Method for extracting lanthanides and actinides from acid solutions45US 4,548,790 AThe United States of America as represented by the United States Department of Energy · 1985
- Method for extracting lanthanides and actinides from acid solutions by modification of purex solvent31US 4,574,072 AThe United States of America as represented by the United States Department of Energy · 1986
- Mediated electrochemical oxidation for decontamination28US 7,531,708 B2Scimist, Inc. · 2009