C22B 1/00
Preliminary treatment of ores or scrap
C22B1/00 (Preliminary treatment of ores or scrap) appears on 2,057 US grants and 2,028 published applications in this corpus.
Search patents in C22B- Granted patents
- 2,057
- Published applications
- 2,028
- Assignees
- 1,398
- Inventors
- 5,538
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 53 | 0 |
| 1977 | 51 | 0 |
| 1978 | 59 | 0 |
| 1979 | 32 | 0 |
| 1980 | 34 | 0 |
| 1981 | 48 | 0 |
| 1982 | 36 | 0 |
| 1983 | 35 | 0 |
| 1984 | 31 | 0 |
| 1985 | 33 | 0 |
| 1986 | 25 | 0 |
| 1987 | 28 | 0 |
| 1988 | 17 | 0 |
| 1989 | 28 | 0 |
| 1990 | 23 | 0 |
| 1991 | 26 | 0 |
| 1992 | 38 | 0 |
| 1993 | 30 | 0 |
| 1994 | 26 | 0 |
| 1995 | 37 | 0 |
| 1996 | 31 | 0 |
| 1997 | 28 | 0 |
| 1998 | 36 | 0 |
| 1999 | 20 | 0 |
| 2000 | 39 | 0 |
| 2001 | 36 | 8 |
| 2002 | 39 | 29 |
| 2003 | 21 | 31 |
| 2004 | 25 | 44 |
| 2005 | 21 | 47 |
| 2006 | 26 | 49 |
| 2007 | 13 | 48 |
| 2008 | 22 | 48 |
| 2009 | 34 | 60 |
| 2010 | 47 | 65 |
| 2011 | 52 | 50 |
| 2012 | 42 | 51 |
| 2013 | 37 | 63 |
| 2014 | 38 | 58 |
| 2015 | 57 | 78 |
| 2016 | 48 | 84 |
| 2017 | 52 | 56 |
| 2018 | 55 | 83 |
| 2019 | 60 | 80 |
| 2020 | 55 | 80 |
| 2021 | 56 | 90 |
| 2022 | 53 | 102 |
| 2023 | 68 | 141 |
| 2024 | 94 | 205 |
| 2025 | 86 | 209 |
| 2026 | 76 | 169 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of carbothermic process of magnesium production and co-production of calcium carbide6 Oct 2026US 12,753,464 B2Zhengzhou University
- Enhanced dross feedstock29 Sep 2026US 12,747,485 B2Novelis Inc.
- Two-step thermal treatment of nickel-containing sulfides for the production of ferronickel22 Sep 2026US 12,741,314 B2The Governing Council of the University of Toronto
- Method for recovering lithium and method for processing lithium ion secondary battery22 Sep 2026US 12,744,261 B2Dowa Eco-System Co., Ltd.
- Method for recovering active metals from lithium secondary battery22 Sep 2026US 12,744,262 B2SK Innovation Co., Ltd.
- Systems and methods for improved metal recovery by leaching8 Oct 2026US 2026/0308711 A1Freeport Minerals Corporation
- Systems and methods for improved metal recovery by leaching8 Oct 2026US 2026/0308712 A1Freeport Minerals Corporation
- 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
- Hydrometallurgical Process for Recovering Palladium from a Spent Catalyst24 Sep 2026US 2026/0286463 A1Peroxidos Do Brasil Ltda
- Method of recovering lithium1915153724 Sep 2026US 2026/0290925 A1LG Energy Solution, Ltd.
Most cited
By later US patents
- Method and apparatus for preparing agglomerates suitable for use in a blast furnace117US 4,055,390 AMolten Metal Engineering Co. · 1977
- Process of using olivine in a blast furnace111US 3,966,456 AMolten Metal Engineering Co. · 1976
- Free flowing dry back-up insulating material110US 7,083,758 B2Les Produits Industriels de Haute Temperature Pyrotek Inc. · 2006
- Process and apparatus for introducing metal chips into a molten metal bath thereof106US 4,702,768 APre-Melt Systems, Inc. · 1987
- Valve for aerosol container91US 6,170,717 B2Glaxo Wellcome Inc. · 2001