C22B 60/0252
Treatment or purification of solutions or of liquors or of slurries
Official title: {treatment or purification of solutions or of liquors or of slurries (C22B60/0221 takes precedence)}
C22B60/0252 (Treatment or purification of solutions or of liquors or of slurries) appears on 422 US grants and 123 published applications in this corpus.
Search patents in C22B- Granted patents
- 422
- Published applications
- 123
- Assignees
- 233
- Inventors
- 848
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 12 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 22 | 0 |
| 1981 | 43 | 0 |
| 1982 | 29 | 0 |
| 1983 | 38 | 0 |
| 1984 | 45 | 0 |
| 1985 | 12 | 0 |
| 1986 | 19 | 0 |
| 1987 | 14 | 0 |
| 1988 | 12 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 3 |
| 2005 | 3 | 0 |
| 2006 | 1 | 1 |
| 2007 | 3 | 4 |
| 2008 | 1 | 2 |
| 2009 | 3 | 4 |
| 2010 | 4 | 3 |
| 2011 | 2 | 0 |
| 2012 | 3 | 8 |
| 2013 | 2 | 10 |
| 2014 | 9 | 7 |
| 2015 | 7 | 13 |
| 2016 | 5 | 5 |
| 2017 | 5 | 5 |
| 2018 | 8 | 10 |
| 2019 | 8 | 5 |
| 2020 | 5 | 9 |
| 2021 | 5 | 8 |
| 2022 | 9 | 5 |
| 2023 | 4 | 6 |
| 2024 | 3 | 7 |
| 2025 | 3 | 2 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Processes for the recovery of uranium23 Jun 2026US 12,662,719 B2Ocp SA
- Recovery method of Ra-226, production method of Ra-226 solution, and Ac-225 solution production method of Ac-225 solution5 May 2026US 12,618,122 B2National Institutes for Quantum Science and Technology
- Method for numerical simulation of reactive transport during CO2+O2 in-situ leaching of uranium at sandstone-type uranium deposit24 Feb 2026US 12,559,821 B2Hohai University
- Dissolution process17 Feb 2026US 12,553,103 B2Watts & Fisher Pty Ltd
- Environmentally friendly polymeric sorbent material for the extraction and determination of rare earth elements, thorium, and uranium3 Feb 2026US 12,539,503 B2The University of Toledo
- Process for liquid-liquid extraction of rare earths or actinides via synergistic combination of a co-solvent hydrotrope with anionic or chelating extractants11 Jun 2026US 2026/0159407 A1Centre National De La Recherche Scientifique
- Titania based generators for ac-225 generation14 May 2026US 2026/0132487 A1c/o TerraPower Isotopes, LLC
- Recovering uranium from a uranyl nitrate solution9 Apr 2026US 2026/0098323 A1X-energy, LLC
- Recovering rare earth elements8 May 2025US 2025/0146104 A1The Australian National University
- Heterogeneous material processing system and method13 Feb 2025US 2025/0050352 A1
Most cited
By later US patents
- Membrane hydro-metallurgical extraction process60US 3,957,504 AAllied Chemical Corporation · 1976
- Method of simultaneous concentration and dilution of isotopes48US 3,953,568 A1976
- Method for supporting hydrous metal oxide on carrier43US 4,178,270 AHitachi, Ltd. · 1979
- Metal extraction from solution and immobilized chelating agents used therefor38US 4,448,694 ADow Corning Corporation · 1984
- Extracting metals directly from metal oxides35US 5,606,724 AIdaho Research Foundation, Inc. · 1997