C01F 17/282
Sulfates
C01F17/282 (Sulfates) appears on 26 US grants and 19 published applications in this corpus.
Search patents in C01F- Granted patents
- 26
- Published applications
- 19
- Assignees
- 19
- Inventors
- 74
- Latest grant
- 8 Sep 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 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 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 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 3 |
| 2020 | 2 | 0 |
| 2021 | 3 | 3 |
| 2022 | 0 | 0 |
| 2023 | 2 | 4 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Binder for an agglomeration process8 Sep 2026US 12,729,161 B2Mintek
- Identifying and extracting rare earth elements from mining operations28 Oct 2025US 12,454,739 B2Georgia State University Research Foundation, Inc.
- Process for the recovery of rare earths2 Jan 2024US 11,858,824 B2Arafura Resources Limited
- Selective recovery method of vanadium and cesium from waste sulfuric acid vanadium catalyst, and high-quality vanadium aqueous solution and cesium alum produced thereby7 Nov 2023US 11,807,544 B2Korea Institute of Geoscience and Mineral Resources
- Processing rare earth sulphate solutions26 Sep 2023US 11,767,228 B2Arafura Resources Limited
- Materials, methods and techniques for the selective extraction of cerium from rare earth sulfates solutions6 Nov 2025US 2025/0340451 A1Lynas Rare Earths Limited
- Rare earth metal extracting bacterial consortia23 Oct 2025US 2025/0327018 A1
- Identifying and extracting rare earth elements from mining operations7 Mar 2024US 2024/0076761 A1Georgia State University Research Foundation, Inc.
- Binder for an agglomeration process28 Dec 2023US 2023/0416150 A1Mintek
- Methods of recovering rare earth metals17 Aug 2023US 2023/0257278 A1
Most cited
By later US patents
- Process for the preparation of cerium oxide particulates37US 4,661,330 ARhone-Poulenc Specialties Chimiques · 1987
- Process for obtaining ceric oxide26US 5,002,747 ARhone-Poulenc Chimie · 1991
- Novel cerium oxide particulates26US 5,080,877 ARhone-Poulenc Specialties Chimiques · 1992
- Ceric oxide with new morphological characteristics and method for obtaining same20US 5,011,671 ARhone-Poulenc Chimie · 1991
- Process for separation of the lanthanides13US 4,041,125 AForskningsgruppe for Sjeldne Jordarter · 1977