- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment 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: 1285
10-year publication summary
|
42
|
83
|
75
|
74
|
74
|
115
|
108
|
127
|
166
|
128
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21328 |
32 |
| Sumitomo Metal Mining Co., Ltd. | 1994 |
32 |
| Umicore | 776 |
18 |
| Gem Co., Ltd. | 361 |
16 |
| PT Qmb New Energy Materials | 257 |
15 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1270 |
13 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1226 |
13 |
| PT ESG New Energy Material | 158 |
13 |
| 1001297676 Ontario Inc. | 29 |
13 |
| JX Metals Circular Solutions Co., Ltd. | 82 |
11 |
| PT Green Eco Nickel | 102 |
11 |
| Sumitomo Chemical Company, Limited | 8967 |
10 |
| Ecolab USA Inc. | 5826 |
10 |
| JX Nippon Mining & Metals Corporation | 1456 |
10 |
| Hatch Ltd. | 218 |
9 |
| JFE Steel Corporation | 7617 |
9 |
| Anglo American Technical & Sustainability Services Ltd | 72 |
9 |
| POSCO Holdings Inc. | 694 |
9 |
| Metso Metals Oy | 225 |
9 |
| Novelis Inc. | 784 |
8 |
| Other owners | 1015 |