C22B 1/04
Blast roasting
C22B1/04 (Blast roasting) appears on 26 US grants and 31 published applications in this corpus.
Search patents in C22B- Granted patents
- 26
- Published applications
- 31
- Assignees
- 32
- Inventors
- 108
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 3 |
| 2010 | 0 | 3 |
| 2011 | 1 | 0 |
| 2012 | 4 | 1 |
| 2013 | 0 | 3 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 1 | 4 |
| 2024 | 1 | 4 |
| 2025 | 1 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Metals recovery from spent supported catalyst17 Mar 2026US 12,577,125 B2Chevron U.S.A.Inc.
- Method of purifying sodium bromide from waste circuit boards pyrolysis coke27 Jan 2026US 12,534,376 B2Beijing University of Technology
- System for smelting tin-containing materials and method for smelting same3 Jun 2025US 12,319,980 B2
- Process for obtaining vanadium oxide from a gasifier slag field2 Apr 2024US 11,945,728 B2Reliance Industries Limited
- Ironmaking feedstock26 Dec 2023US 11,851,725 B2Commonwealth Scientific and Industrial Research Organisation
- Electrode material leaching method and method for separating cobalt and nickel3 Jul 2025US 2025/0215527 A1Mitsubishi Materials Corporation
- Production method for valuable metals26 Sep 2024US 2024/0318281 A1Sumitomo Metal Mining Co., Ltd.
- Method for dissolving battery powder in hydrochloric acid8 Aug 2024US 2024/0263268 A1Asaka Riken Co., Ltd.
- Method for producing valuable metal18 Jul 2024US 2024/0240281 A1Sumitomo Metal Mining Co., Ltd.
- Process and plant for recycling zinc oxide residues18 Jul 2024US 2024/0240283 A1Metso Metals Oy
Most cited
By later US patents
- Tantalum metal powder38US 4,141,719 AFansteel Inc. · 1979
- Method for heat treatment of fines with atmosphere control9US 5,132,102 AFuller Company · 1992
- Method of recovering non-ferrous metals from sulphidic materials5US 4,069,041 ABoliden Aktiebolag · 1978
- Method and plant for producing iron from roasted pyrites4US 10,125,403 B2Blücher GmbH · 2018
- Autogenous roasting of iron ore4US 5,244,494 A1993