- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment 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: 979
10-year publication summary
|
55
|
40
|
45
|
43
|
40
|
50
|
65
|
87
|
82
|
17
|
| 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. | 1726 |
213 |
| Guangdong Brunp Recycling Technology Co., Ltd | 971 |
55 |
| Hunan Brunp Recycling Technology Co., Ltd. | 928 |
55 |
| JX Nippon Mining & Metals Corporation | 1526 |
24 |
| Hunan Brunp EV Recycling Co., Ltd. | 362 |
20 |
| BHP Billiton SSM Development Pty Ltd. | 30 |
17 |
| Gem Co., Ltd. | 74 |
15 |
| PT Qmb New Energy Materials | 32 |
13 |
| PT Gem Indonesia New Energy Materials | 30 |
13 |
| Kyushu University, National University Corporation | 1625 |
12 |
| Outotec (Finland) Oy | 489 |
12 |
| BASF SE | 20387 |
11 |
| Outotec Oyj | 302 |
11 |
| Hunan Brunp Vehicles Recycling Co., Ltd. | 75 |
10 |
| Companhia Vale do Rio Doce | 17 |
9 |
| Metso Outotec Finland Oy | 797 |
9 |
| Mitsubishi Materials Corporation | 2408 |
8 |
| Sherritt International Corporation | 30 |
8 |
| PT ESG New Energy Material | 16 |
8 |
| Murrin Murrin Operations Pty Ltd. | 13 |
7 |
| Other owners | 449 |