- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment 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: 293
10-year publication summary
|
7
|
26
|
19
|
20
|
18
|
13
|
16
|
37
|
42
|
25
|
| 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 |
71 |
| Umicore | 542 |
18 |
| Guangdong Brunp Recycling Technology Co., Ltd | 674 |
12 |
| Hunan Brunp Recycling Technology Co., Ltd. | 622 |
12 |
| BASF SE | 19740 |
7 |
| POSCO | 2222 |
5 |
| INVISTA North America, LLC | 170 |
5 |
| INV Nylon Chemicals Americas, LLC | 182 |
5 |
| Hunan Brunp Vehicles Recycling Co., Ltd. | 73 |
5 |
| Cvmr Corporation | 17 |
4 |
| JFE Steel Corporation | 6067 |
4 |
| JNC Corporation | 1527 |
4 |
| Northeastern University | 493 |
4 |
| Outotec (Finland) Oy | 491 |
4 |
| Metso Outotec Finland Oy | 795 |
4 |
| JFE Material Co., Ltd. | 16 |
3 |
| Korea Zinc Co., Ltd. | 41 |
3 |
| Research Institute of Industrial Science & Technology | 378 |
3 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
3 |
| Tesla, Inc. | 1519 |
3 |
| Other owners | 114 |