- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 4/02 - Light metals
Patent holdings for IPC class C22B 4/02
Total number of patents in this class: 62
10-year publication summary
8
|
3
|
5
|
3
|
4
|
1
|
17
|
2
|
7
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Carbon Technology Holdings, LLC | 185 |
32 |
Nemaska Lithium Inc. | 69 |
3 |
Alcoa Inc. | 323 |
2 |
Elkem AS | 66 |
2 |
Hon Hai Precision Industry Co., Ltd. | 4157 |
1 |
Massachusetts Institute of Technology | 9795 |
1 |
Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
1 |
Tsinghua University | 5426 |
1 |
Alcoa USA Corp. | 187 |
1 |
The Arizona Board of Regents on Behalf of the University of Arizona | 1906 |
1 |
Auckland UniServices Limited | 503 |
1 |
Biogenic Reagents LLC | 11 |
1 |
Biogenic Reagents Ventures, LLC | 4 |
1 |
Commonwealth Scientific and Industrial Research Organisation | 1652 |
1 |
Dubai Aluminium PJSC | 56 |
1 |
Enviro Water Minerals Company, Inc. | 24 |
1 |
GfE Metalle und Materialien GmbH | 12 |
1 |
Reed Advanced Materials Pty Ltd | 11 |
1 |
TITAL GmbH | 5 |
1 |
Yunnan Dongchang Metal Tech Co., Ltd. | 4 |
1 |
Other owners | 7 |