C01F 7/762
Ammonium or alkali metal aluminium sulfates
C01F7/762 (Ammonium or alkali metal aluminium sulfates) appears on 20 US grants and 12 published applications in this corpus.
Search patents in C01F- Granted patents
- 20
- Published applications
- 12
- Assignees
- 19
- Inventors
- 63
- Latest grant
- 7 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 3 |
| 2020 | 2 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Treatment of thick fine tailings including chemical immobilization, polymer flocculation and dewatering21 Sep 2021US 11,124,706 B2Suncor Energy Inc.
- Sodium aluminum sulfate for use in animal litters22 Dec 2020US 10,869,459 B1Usalco, LLC
- Method for the purification of alumina27 Oct 2020US 10,815,549 B2AluChem Companies, Inc.
- Anode active material and metal ion battery prepared therewith2 Aug 2016US 9,406,935 B2Toyota Jidosha Kabushiki Kaisha
- System for preparing aluminum compounds using waste sulfuric acid and method thereof28 May 2026US 2026/0145958 A1Mg Chem Co., Ltd.
- Selective recovery method of vanadium and cesium from waste sulfuric acid vanadium catalyst, and high-quality vanadium aqueous solution and cesium alum produced thereby4 May 2023US 2023/0138828 A1Korea Institute of Geoscience and Mineral Resources
- Treatment of thick fine tailings including chemical immobilization, polymer flocculation and dewatering24 Feb 2022US 2022/0055083 A1Suncor Energy Inc.
- Treatment of thick fine tailings including chemical immobilization, polymer flocculation and dewatering21 Nov 2019US 2019/0352207 A2Suncor Energy Inc.
- Treatment of thick fine tailings including chemical immobilization, polymer flocculation and dewatering23 May 2019US 2019/0152823 A1Suncor Energy Inc.
Most cited
By later US patents
- Value improvements of clays16US 6,153,157 AMcLaughlin Geosurveys Pty. Limited · 2000
- Method of producing manganese sulfate solutions of improved purity13US 4,483,828 AKerr-McGee Chemical Corporation · 1984
- Process for recovering valuable metal from waste catalyst9US 5,431,892 ASumitomo Metal Mining Co., Ltd. · 1995
- Drying intumescent material4US 4,304,052 ABFG Glassgroup · 1981
- Process for the recovery of valuable metals from spent crude-oil sulfur-extraction catalysts4US 4,474,735 AOutokumpu Oy · 1984