C01G 21/003
Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
Official title: {Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange}
C01G21/003 (Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange) appears on 20 US grants and 5 published applications in this corpus.
Search patents in C01G- Granted patents
- 20
- Published applications
- 5
- Assignees
- 18
- Inventors
- 52
- Latest grant
- 12 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 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 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for separating radium from lead, bismuth, and thorium12 Mar 2024US 11,925,879 B2Battelle Memorial Institute
- Methods for producing ferric maltol compositions from elemental iron26 Oct 2021US 11,155,529 B2Shield Tx (UK) Limited
- Sulfonated aminomethylated chelate resins24 Apr 2018US 9,950,320 B2LANXESS Deutschland GmbH
- Decontamination of radioactive metals2 Aug 2011US 7,988,937 B1
- Silica gel ion exchange resins for the selective removal of lead and cadmium ions from aqueous liquids15 Feb 1994US 5,286,464 ANalco Chemical Company
- Method for extracting lead-212 and bismuth-212 from thorium-232 decay chain12 Mar 2026US 2026/0070049 A1University of South China
- Method of exchanging anions of inorganic halide perovskite nanoparticles using cationic effect2 Mar 2023US 2023/0069115 A1Korea University Research and Business Foundation
- Systems and Methods for Separating Radium from Lead, Bismuth, and Thorium28 Jan 2021US 2021/0024365 A1Battelle Memorial Institute
- Methods for producing ferric maltol compositions from elemental iron1 Oct 2020US 2020/0308130 A1United Kingdom Research and Innovation
- Sulfonated aminomethylated chelate resins3 Aug 2017US 2017/0216833 A1LANXESS Deutschland GmbH
Most cited
By later US patents
- Removal of heavy metals from waste water61US 4,731,187 AMiyoshi Yushi Kabushiki Kaisha · 1988
- 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
- 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
- Removal of metal from solution21US 4,377,555 AThe British Petroleum Company p.l.c. · 1983