C21B 13/006
Starting from ores containing non ferrous metallic oxides
Official title: {Starting from ores containing non ferrous metallic oxides}
C21B13/006 (Starting from ores containing non ferrous metallic oxides) appears on 89 US grants and 80 published applications in this corpus.
Search patents in C21B- Granted patents
- 89
- Published applications
- 80
- Assignees
- 59
- Inventors
- 203
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 8 | 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 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 5 |
| 2005 | 0 | 3 |
| 2006 | 0 | 8 |
| 2007 | 2 | 3 |
| 2008 | 1 | 2 |
| 2009 | 4 | 3 |
| 2010 | 5 | 8 |
| 2011 | 3 | 6 |
| 2012 | 6 | 6 |
| 2013 | 6 | 3 |
| 2014 | 3 | 4 |
| 2015 | 0 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 1 | 6 |
| 2019 | 5 | 4 |
| 2020 | 6 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 4 |
| 2025 | 2 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and system for extraction of iron oxide from ore29 Jul 2025US 12,371,754 B2Great Western Iron Ore Properties Inc.
- Systems and methods for self-reduction of iron ore18 Mar 2025US 12,252,753 B2Charm Industrial, Inc.
- Method and system for producing low carbon ferroalloy from chromite ore4 Jun 2024US 12,000,017 B2MM Metals USA, LLC
- Ironmaking feedstock26 Dec 2023US 11,851,725 B2Commonwealth Scientific and Industrial Research Organisation
- Oxide ore smelting method21 Mar 2023US 11,608,543 B2Sumitomo Metal Mining Co., Ltd.
- A direct reduction facility and a method of direct reduction of metal oxide26 Feb 2026US 2026/0055477 A1Luossavaara-Kiirunavaara AB
- Systems and methods for self-reduction of iron ore12 Jun 2025US 2025/0188554 A1Charm Industrial, Inc.
- Method for manufacturing carbonaceous material-containing agglomerate ore, and method for manufacturing molten pig iron1 May 2025US 2025/0137080 A1Jfe Steel Corporation
- Hydrogen-based valorisation of metal-containing feed materials to extract metals13 Feb 2025US 2025/0051875 A1Lifezone Limited
- Enrichment of Iron from Bauxite Waste in Chemical Looping Combustion31 Oct 2024US 2024/0360525 A1University of Kentucky Research Foundation
Most cited
By later US patents
- Process for the direct production of steel37US 4,053,301 AHazen Research, Inc. · 1977
- Process for recovering iron and zinc from steel making dusts22US 4,396,423 A1983
- Method for the recovery of zinc oxide21US 5,208,004 AMetals Recycling Technologies Corp. · 1993
- Ilmenite coated pellet and process for reducing same15US 3,941,583 AICI Australia Limited · 1976
- Method for treating waste streams containing zinc13US 5,464,596 AMetals Recycling Technologies Corp. · 1995