C22B 30/02
Obtaining antimony
C22B30/02 (Obtaining antimony) appears on 42 US grants and 23 published applications in this corpus.
Search patents in C22B- Granted patents
- 42
- Published applications
- 23
- Assignees
- 43
- Inventors
- 127
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 2 | 2 |
| 2018 | 3 | 3 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 3 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for supercritical fluid extraction of metal23 Jun 2026US 12,662,390 B2The Governing Council of the University of Toronto
- System for treating tin smelting intermediate materials and method for treating same9 Dec 2025US 12,492,446 B2Kunming University of Science and Technology
- Low temperature reduction of metal oxides4 Mar 2025US 12,241,141 B2Kinaltek Pty. Ltd.
- Pyro-metallurgical process in a rotary kiln25 Jun 2024US 12,018,345 B2S. A. Lhoist Recherche et Developpement
- Process for separation of antimony and arsenic from a leach solution21 Sep 2021US 11,124,857 B2Goldcorp Inc.
- Method for antimony recovery and synergistic fluorine fixation from low-grade complex antimony oxide resources1 Oct 2026US 2026/0297704 A1Kunming University of Science and Technology
- Low temperature reduction of metal oxides5 Jun 2025US 2025/0179609 A1Kinaltek Pty. Ltd.
- Low temperature reduction of metal oxides21 Sep 2023US 2023/0295767 A1Kinaltek Pty. Ltd.
- Hydrometallurgical Processes For Battery Recycling7 Sep 2023US 2023/0279520 A1The Doe Run Resources Corporation
- System for treating tin smelting intermediate materials and method for treating same13 Apr 2023US 2023/0111491 A1Kunming University of Science and Technology
Most cited
By later US patents
- Recovery or arsenic and antimony from spent antimony catalyst18US 4,722,774 AChemical & Metal Industries, Inc. · 1988
- Process for hydrometallurgic and electrochemical treatment of sulfur antimony ores with production of electrolytic antimony and elemental sulfur14US 5,750,019 AEngitec S.p.A. · 1998
- Removal of antimony from industrial streams8US 4,046,688 ARohm and Haas Company · 1977
- Sodium sulfide leach process8US 4,051,220 AEquity Mining Corporation · 1977
- Extraction of antimony from antimony sulfides bearing solids8US 4,096,232 AThe Harshaw Chemical Company · 1978