C01G 53/11
Sulfides
Official title: Sulfides; Oxysulfides
C01G53/11 (Sulfides) appears on 45 US grants and 40 published applications in this corpus.
Search patents in C01G- Granted patents
- 45
- Published applications
- 40
- Assignees
- 40
- Inventors
- 116
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 5 |
| 2010 | 2 | 5 |
| 2011 | 4 | 3 |
| 2012 | 2 | 1 |
| 2013 | 3 | 1 |
| 2014 | 3 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 4 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 4 |
| 2023 | 0 | 2 |
| 2024 | 4 | 1 |
| 2025 | 2 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for separating cobalt and nickel17 Mar 2026US 12,577,636 B2Mitsubishi Materials Corporation
- Co-processing of copper sulphide concentrate with nickel laterite ore29 Apr 2025US 12,286,686 B2Sherritt International Corporation
- Process for the synthesis of nanoparticles of transition metal chalcogenides18 Mar 2025US 12,252,397 B2Council of Scientific and Industrial Research
- Layered electrode materials and methods for rechargeable zinc batteries17 Dec 2024US 12,170,364 B2Salient Energy Inc.
- Method for producing aqueous solution containing nickel, cobalt and manganese10 Dec 2024US 12,163,204 B2Kemco
- Process for metal sulphidation9 Oct 2025US 2025/0313491 A1Umicore AG & Co. KG
- Electrode material leaching method and method for separating cobalt and nickel3 Jul 2025US 2025/0215527 A1Mitsubishi Materials Corporation
- Process for the recovery of li, ni and co15 May 2025US 2025/0154627 A1Umicore AG & Co. KG
- Method for producing aqueous solution containing nickel, cobalt and manganese18 Jul 2024US 2024/0240279 A1Kemco
- Method for separating cobalt and nickel5 Oct 2023US 2023/0313337 A1Mitsubishi Materials Corporation
Most cited
By later US patents
- Process for recovering base metals from spent hydroprocessing catalyst26US 7,658,895 B2Chevron U.S.A.Inc. · 2010
- Process for separating and recovering base metals from used hydroprocessing catalyst26US 7,837,960 B2Chevron U.S.A.Inc. · 2010
- Leaching metals from spent hydroprocessing catalysts with ammonium sulfate22US 4,554,138 AChevron Research Company · 1985
- Controlling scale composition during acid pressure leaching of laterite and garnierite ore16US 4,415,542 ACompagne Francaise D'Entreprises Minieres, Metallurgiques et D'Investissements · 1983
- Selective precipitation of nickel and cobalt sulfides from acidic sulfate solution15US 4,110,400 AAmax Inc. · 1978