- 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: 859
10-year publication summary
|
49
|
55
|
40
|
45
|
43
|
40
|
50
|
65
|
86
|
22
|
| 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 |
209 |
| Guangdong Brunp Recycling Technology Co., Ltd | 674 |
37 |
| Hunan Brunp Recycling Technology Co., Ltd. | 622 |
37 |
| JX Nippon Mining & Metals Corporation | 1576 |
28 |
| Hunan Brunp EV Recycling Co., Ltd. | 327 |
20 |
| BHP Billiton SSM Development Pty Ltd. | 30 |
17 |
| Kyushu University, National University Corporation | 1572 |
12 |
| Outotec (Finland) Oy | 491 |
12 |
| Outotec Oyj | 318 |
12 |
| BASF SE | 19740 |
11 |
| Hunan Brunp Vehicles Recycling Co., Ltd. | 73 |
10 |
| Companhia Vale do Rio Doce | 18 |
9 |
| Metso Outotec Finland Oy | 795 |
9 |
| Sherritt International Corporation | 30 |
8 |
| Umicore | 542 |
8 |
| Vale Inco Limited | 12 |
8 |
| Murrin Murrin Operations Pty Ltd. | 13 |
7 |
| Vale S.A. | 262 |
7 |
| BHP Billiton SSM Technology Pty Ltd | 7 |
6 |
| Jingmen Gem CO., Ltd | 39 |
6 |
| Other owners | 386 |