- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 1/00 - Preliminary treatment of ores or scrap
Patent holdings for IPC class C22B 1/00
Total number of patents in this class: 867
10-year publication summary
|
51
|
63
|
42
|
83
|
75
|
73
|
75
|
112
|
98
|
22
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1670 |
31 |
| BASF SE | 19740 |
19 |
| JX Nippon Mining & Metals Corporation | 1576 |
15 |
| Li-Cycle Corp. | 36 |
14 |
| Umicore | 542 |
10 |
| Anglo American Technical & Sustainability Services Ltd | 52 |
9 |
| Hatch Ltd. | 219 |
8 |
| Novelis Inc. | 656 |
8 |
| Technological Resources Pty. Limited | 444 |
8 |
| Metso Outotec Finland Oy | 795 |
8 |
| Ecolab USA Inc. | 5190 |
7 |
| Guangdong Brunp Recycling Technology Co., Ltd | 674 |
7 |
| House of Metals Company Limited | 33 |
7 |
| Hunan Brunp Recycling Technology Co., Ltd. | 622 |
7 |
| Vale S.A. | 262 |
7 |
| FLSmidth A/S | 923 |
7 |
| Barrick Gold Corporation | 73 |
6 |
| Kyushu University, National University Corporation | 1572 |
6 |
| Outotec (Finland) Oy | 491 |
6 |
| JFE Steel Corporation | 6067 |
5 |
| Other owners | 672 |