- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 23/00 - Obtaining nickel or cobalt
Patent holdings for IPC class C22B 23/00
Total number of patents in this class: 1097
10-year publication summary
|
55
|
40
|
45
|
43
|
40
|
50
|
65
|
90
|
82
|
85
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1760 |
215 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1185 |
69 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1153 |
69 |
| Gem Co., Ltd. | 213 |
32 |
| PT Qmb New Energy Materials | 144 |
30 |
| PT Gem Indonesia New Energy Materials | 142 |
30 |
| JX Nippon Mining & Metals Corporation | 1501 |
24 |
| Hunan Brunp EV Recycling Co., Ltd. | 370 |
20 |
| BHP Billiton SSM Development Pty Ltd. | 30 |
17 |
| PT ESG New Energy Material | 51 |
16 |
| Kyushu University, National University Corporation | 1643 |
12 |
| Outotec (Finland) Oy | 480 |
12 |
| BASF SE | 20777 |
11 |
| Outotec Oyj | 280 |
11 |
| JX Metals Circular Solutions Co., Ltd. | 46 |
11 |
| Hunan Brunp Vehicles Recycling Co., Ltd. | 75 |
10 |
| Companhia Vale do Rio Doce | 15 |
8 |
| Mitsubishi Materials Corporation | 2431 |
8 |
| Asaka Riken Co., Ltd. | 45 |
7 |
| Korea Zinc Co., Ltd. | 83 |
7 |
| Other owners | 478 |