C22B 15/0097
Sulfur release abatement
Official title: {Sulfur release abatement}
C22B15/0097 (Sulfur release abatement) appears on 16 US grants and 13 published applications in this corpus.
Search patents in C22B- Granted patents
- 16
- Published applications
- 13
- Assignees
- 20
- Inventors
- 57
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Microbial-assisted heap leaching17 Mar 2026US 12,577,634 B2Technological Resources Pty. Limited
- Method of converting copper containing material1 Oct 2019US 10,428,404 B2Outotec (Finland) Oy
- Processes for preparing various metals and derivatives thereof from copper- and sulfur-containing material2 Jul 2019US 10,337,083 B25N Plus Inc.
- Method and equipment for treating process gas26 Apr 2016US 9,322,552 B2Outotec Oyj
- Method of treating a sulphide mineral3 Dec 2013US 8,597,933 B2BHP Billiton SA Limited
- Microbial-assisted heap leaching5 Feb 2026US 2026/0035764 A1Technological Resources Pty. Limited
- Treatment of zinc leach residue13 Mar 2025US 2025/0084503 A1Glencore Technology Pty Limited
- Reduction of chalcopyrite by an aqueous phase reducant to enable hydrometallurgical extraction of copper22 Feb 2024US 2024/0060199 A1The Trustees of Columbia University in the City of New York
- Microbial-assisted Heap Leaching1 Feb 2024US 2024/0035113 A1Technological Resources Pty. Limited
- A control system of a copper extraction process30 Nov 2023US 2023/0383378 A1Kemira Oyj
Most cited
By later US patents
- Process for control of SO.sub.x emissions from copper smelter operations18US 4,034,063 AIndustrial Resources, Inc. · 1977
- Continuous process for copper smelting and converting in a single furnace by oxygen injection15US 4,470,845 ANewmont Mining Corporation · 1984
- Solid matte-oxygen converting process12US 4,416,690 AKennecott Corporation · 1983
- Apparatus for processing sulphide concentrates and sulphide ores into raw material7US 4,645,186 AOutokumpu Oy · 1987
- Method for processing sulphide concentrates and sulphide ores into raw material5US 4,599,108 AOutokumpu Oy · 1986