C01F 11/005
Preparation involving liquid-liquid extraction, absorption or ion-exchange
Official title: {Preparation involving liquid-liquid extraction, absorption or ion-exchange}
C01F11/005 (Preparation involving liquid-liquid extraction, absorption or ion-exchange) appears on 33 US grants and 16 published applications in this corpus.
Search patents in C01F- Granted patents
- 33
- Published applications
- 16
- Assignees
- 21
- Inventors
- 76
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 5 |
| 2022 | 0 | 1 |
| 2023 | 2 | 3 |
| 2024 | 1 | 0 |
| 2025 | 4 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Facile, low-energy routes for the production of hydrated calcium and magnesium salts from alkaline industrial wastes23 Dec 2025US 12,503,372 B2The Regents of the University of California
- Separation of BACL2 from CACL2 brine solution2 Sep 2025US 12,404,181 B2The Chemours Company Fc, LLC
- Systems and methods for separating yttrium and strontium29 Jul 2025US 12,371,338 B2Battelle Memorial Institute
- Mineral recovery enhanced desalination (MRED) process for desalination and recovery of commodity minerals18 Feb 2025US 12,227,441 B2UNM Rainforest Innovations
- Stable immobilized amine sorbents for REE and heavy metal recovery from liquid sources9 Jul 2024US 12,031,029 B2United States Department of Energy
- Separation of bacl2 from cacl2 brine solution20 Nov 2025US 2025/0353755 A1The Chemours Company Fc, LLC
- Method of removing calcium in a rechargeable lithium battery recycling process13 Nov 2025US 2025/0346974 A1Samsung SDI.Co., Ltd.
- Facile, low-energy routes for the production of hydrated calcium and magnesium salts from alkaline industrial wastes25 May 2023US 2023/0159346 A1The Regents of the University of California
- Stable immobilized amine sorbents for ree and heavy metal recovery from liquid sources13 Apr 2023US 2023/0112681 A1United States Department of Energy
- Buffer-free process cycle for co2 sequestration and carbonate production from brine waste streams with high salinity23 Feb 2023US 2023/0058065 A1The Regents of the University of California
Most cited
By later US patents
- The process of separating a selected ion from a plurality of other ions in a multiple ion solution by contacting the solution with a macrocyclic ligand bonded to silica which selectively complexes with the desired ion52US 4,943,375 ABrigham Young University · 1990
- Removal of metals from solutions37US 4,747,954 AThe Dow Chemical Company · 1988
- Liquid/liquid extraction/purification of impure solutions of rare earth values31US 4,726,938 ARhone-Poulenc Specialites Chimiques · 1988
- Macrocyclic ligands bonded to an inorganic support matrix and a process for selectively and quantitatively removing and concentrating ions present at low concentrations from mixtures thereof with other ions29US 5,179,213 ABrigham Young University · 1993
- Extraction of cesium and strontium from nuclear waste21US 4,749,518 AUniversity of South Carolina · 1988