C01D 3/145
By solid ion-exchangers or solid chelating agents
Official title: {by solid ion-exchangers or solid chelating agents}
C01D3/145 (By solid ion-exchangers or solid chelating agents) appears on 48 US grants and 9 published applications in this corpus.
Search patents in C01D- Granted patents
- 48
- Published applications
- 9
- Assignees
- 30
- Inventors
- 75
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for purifying potassium chloride19 Aug 2025US 12,391,564 B2Klinge Chemicals Ltd.
- Brine purification process31 Oct 2023US 11,802,060 B2Blue Cube IP LLC
- Purification of NaCl brine containing iodine22 Jun 2021US 11,040,903 B2The Chemours Company Fc, LLC
- Brine purification process25 May 2021US 11,014,832 B2Blue Cube IP LLC
- Method of producing pure halide salts of alkaline and/or alkaline earth metal resulting from hydrolytic treatment of halogenous organic waste material12 Jan 2010US 7,645,386 B2
- Method for co-producing iodine and salt2 Mar 2023US 2023/0069167 A1Godo Shigen Co., Ltd.
- Process For Purifying Potassium Chloride18 Aug 2022US 2022/0259058 A1Klinge Chemicals Ltd.
- Brine purification process3 Jun 2021US 2021/0163317 A1Blue Cube IP LLC
- Iodide removal from brine using ion retardation resins3 May 2018US 2018/0119298 A1Chemetics Inc.
- Brine purification process2 Nov 2017US 2017/0313600 A1Blue Cube IP LLC
Most cited
By later US patents
- Recovery of lithium from brines91US 4,116,858 AThe Dow Chemical Company · 1978
- Recovery of lithium from brines90US 4,159,311 AThe Dow Chemical Company · 1979
- Recovery of lithium from brine85US 4,291,001 AThe Dow Chemical Company · 1981
- Process and apparatus for controlling impurities and pollution from membrane chlor-alkali cells58US 4,242,185 AIonics, Incorporated · 1980
- Removal of metals from solutions37US 4,747,954 AThe Dow Chemical Company · 1988