- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 23/02 - Obtaining nickel or cobalt by dry processes
Patent holdings for IPC class C22B 23/02
Total number of patents in this class: 387
10-year publication summary
|
16
|
16
|
17
|
12
|
13
|
26
|
39
|
55
|
39
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1874 |
89 |
| Umicore | 694 |
22 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1247 |
15 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1216 |
15 |
| BASF SE | 21111 |
9 |
| JFE Steel Corporation | 7138 |
9 |
| Korea Zinc Co., Ltd. | 105 |
8 |
| Research Institute of Industrial Science & Technology | 512 |
8 |
| POSCO Holdings Inc. | 346 |
6 |
| Metso Metals Oy | 214 |
6 |
| POSCO | 2154 |
5 |
| INVISTA North America, LLC | 149 |
5 |
| INV Nylon Chemicals Americas, LLC | 196 |
5 |
| Hunan Brunp Vehicles Recycling Co., Ltd. | 75 |
5 |
| Cngr Advanced Material Co., Ltd. | 27 |
5 |
| Kemco | 44 |
5 |
| JNC Corporation | 1511 |
4 |
| Nippon Yakin Kogyo Co., Ltd. | 68 |
4 |
| Northeastern University | 552 |
4 |
| Outotec (Finland) Oy | 460 |
4 |
| Other owners | 154 |