- 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: 432
10-year publication summary
|
19
|
20
|
18
|
13
|
17
|
39
|
44
|
59
|
48
|
39
|
| 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. | 2011 |
92 |
| Umicore | 779 |
26 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1273 |
15 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1227 |
15 |
| JFE Steel Corporation | 7660 |
15 |
| POSCO Holdings Inc. | 696 |
14 |
| Research Institute of Industrial Science & Technology | 573 |
13 |
| BASF SE | 21318 |
10 |
| Korea Zinc Co., Ltd. | 174 |
8 |
| Metso Metals Oy | 226 |
6 |
| Nippon Yakin Kogyo Co., Ltd. | 74 |
5 |
| POSCO | 2143 |
5 |
| INVISTA North America, LLC | 146 |
5 |
| INV Nylon Chemicals Americas, LLC | 203 |
5 |
| Helios Project Ltd. | 24 |
5 |
| Hunan Brunp Vehicles Recycling Co., Ltd. | 75 |
5 |
| Cngr Advanced Material Co., Ltd. | 30 |
5 |
| Kemco | 54 |
5 |
| Glencore Technology Pty Ltd | 55 |
4 |
| JNC Corporation | 1555 |
4 |
| Other owners | 170 |