C01F 7/0613
Pretreatment of the minerals
Official title: Pretreatment of the minerals, e.g. grinding
C01F7/0613 (Pretreatment of the minerals) appears on 23 US grants and 14 published applications in this corpus.
Search patents in C01F- Granted patents
- 23
- Published applications
- 14
- Assignees
- 19
- Inventors
- 93
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 3 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bauxite processing method5 Aug 2025US 12,378,632 B2
- Use of calcium fluoride in the bayer process29 Jul 2025US 12,371,337 B2Rio Tinto Alcan International Limited
- Method of processing and treatment of alunite ores12 Sep 2023US 11,753,697 B2
- Methods and compositions for bauxite beneficiation6 Oct 2020US 10,793,444 B2Ecolab USA Inc.
- Method of transshipping solid particulates in an aqueous suspension of solid particulates using mineral suspending agent6 Jun 2017US 9,670,011 B2Active Minerals International, LLC
- Method for digesting bauxite slurry25 Jun 2026US 2026/0176151 A1Zhengzhou Non-Ferrous Metals Research Institute Co. Ltd of Chalco
- Method for treating high-iron bauxite30 Apr 2026US 2026/0116771 A1Zhengzhou Non-Ferrous Metals Research Institute Co. Ltd of Chalco
- Bauxite processing method4 Aug 2022US 2022/0243300 A1
- Use of Calcium Fluoride in the Bayer Process5 May 2022US 2022/0135417 A1Rio Tinto Alcan International Limited
- Method of Processing and Treatment of Alunite Ores11 Mar 2021US 2021/0071281 A1
Most cited
By later US patents
- Upgrading of bauxites, bauxitic clays, and aluminum mineral bearing clays18US 4,303,204 AReynolds Metals Company · 1981
- Process for reducing the iron15US 4,530,819 AMecseki Ercbanyaszati Vallalat · 1985
- Method for the production of alumina13US 4,256,709 A1981
- Concentration of hydrated aluminum oxide minerals by flotation10US 4,113,466 AReynolds Metals Company · 1978
- Production of alumina from aluminum-containing mineral ores with sodium bicarbonate9US 4,468,375 AAluminum Company of America · 1984