C01F 17/13
By using ion exchange resins
Official title: by using ion exchange resins, e.g. chelate resins
C01F17/13 (By using ion exchange resins) appears on 50 US grants and 36 published applications in this corpus.
Search patents in C01F- Granted patents
- 50
- Published applications
- 36
- Assignees
- 45
- Inventors
- 150
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 4 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 6 | 1 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 3 | 8 |
| 2022 | 1 | 0 |
| 2023 | 2 | 7 |
| 2024 | 1 | 0 |
| 2025 | 0 | 4 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tetraazadodecane based chelating agents for separation of rare earth elements and method therefor6 Oct 2026US 12,752,219 B2Ustav Organicke Chemie A Biochemie Av Cr, V. V. I.
- Continuous ion exchange processes for separating rare earth elements16 Jun 2026US 12,655,499 B2
- High pressure caustic leach methods and processes for recovery of scandium and rare-earth oxides5 May 2026US 12,617,693 B2Scandium Canada Ltd.
- Systems, apparatus and methods for separating actinium, radium, and thorium28 Apr 2026US 12,614,645 B2The University of British Columbia
- Process for polishing metal contaminants from an acidic solution comprising scandium19 Nov 2024US 12,145,855 B2Rio Tinto Iron and Titanium Canada Inc.
- Continuous Ion Exchange Processes for Separating Rare Earth Elements12 Mar 2026US 2026/0071298 A1
- Production and purification of lutetium-177 using electromagnetic separation and chromatography30 Oct 2025US 2025/0336560 A1Nusano, Inc.
- Isotope separation system with velocity filter30 Oct 2025US 2025/0336561 A1Nusano, Inc.
- Ion source with backward electron beam ionization30 Oct 2025US 2025/0336562 A1Nusano, Inc.
- Pressure-assisted separation column16 Jan 2025US 2025/0018314 A1Eczacibasi Monrol Nukleer Urunler Sanayi Ve Ticaret Anonim Sirketi
Most cited
By later US patents
- Ion exchange method for the recovery of scandium34US 4,816,233 AGTE Laboratories Incorporated · 1989
- Process for the separation and purification of yttrium-90 for medical applications33US 5,368,736 AThe United States of America as represented by the United States Department of Energy · 1994
- Multi-stage solvent extraction of metal value30US 6,238,566 B1Shin-Etsu Chemical Co., Ltd. · 2001
- Ion exchange compositions29US 4,902,426 A1990
- Recovery of scandium and uranium29US 4,968,504 AGTE Laboratories Incorporated · 1990