- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 4/02 - Light metals
Patent holdings for IPC class C22B 4/02
Total number of patents in this class: 68
10-year publication summary
|
3
|
4
|
3
|
4
|
1
|
17
|
2
|
7
|
6
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carbon Technology Holdings, LLC | 215 |
40 |
| Nemaska Lithium Inc. | 72 |
3 |
| Hon Hai Precision Industry Co., Ltd. | 4030 |
1 |
| Massachusetts Institute of Technology | 10080 |
1 |
| Tsinghua University | 5940 |
1 |
| Alcoa Inc. | 285 |
1 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 2172 |
1 |
| Auckland UniServices Limited | 492 |
1 |
| Biogenic Reagents LLC | 11 |
1 |
| Biogenic Reagents Ventures, LLC | 4 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1658 |
1 |
| Dubai Aluminium PJSC | 62 |
1 |
| Elkem AS | 61 |
1 |
| Enviro Water Minerals Company, Inc. | 24 |
1 |
| GfE Metalle und Materialien GmbH | 11 |
1 |
| Reed Advanced Materials Pty Ltd | 12 |
1 |
| SK Innovation Co., Ltd. | 1356 |
1 |
| TITAL GmbH | 5 |
1 |
| Yunnan Dongchang Metal Tech Co., Ltd. | 4 |
1 |
| Yunnan Lincang Xinyuan Germanium Industry Co., Ltd. | 4 |
1 |
| Other owners | 7 |