- All sections
- C - Chemistry; metallurgy
- C25C - Processes for the electrolytic production, recovery or refining of metals; apparatus therefor
- C25C 3/06 - Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
Patent holdings for IPC class C25C 3/06
Total number of patents in this class: 251
10-year publication summary
|
28
|
12
|
28
|
17
|
19
|
16
|
21
|
7
|
8
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dubai Aluminium PJSC | 56 |
32 |
| Rio Tinto ALCAN International Limited | 214 |
18 |
| Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RUSAL Inzhenerno-tekhnologicheskiy Tsentr" | 142 |
17 |
| Alcoa USA Corp. | 187 |
16 |
| Norsk Hydro ASA | 288 |
13 |
| BASF SE | 19740 |
9 |
| E.c.l. | 30 |
9 |
| Elysis Limited Partnership | 62 |
8 |
| Fives Ecl. | 23 |
5 |
| ThyssenKrupp AG | 3086 |
5 |
| Aluminum Corporation of China Limited | 35 |
4 |
| Newsouth Innovations Pty Limited | 567 |
4 |
| Shenzhen Sunxing Light Alloys Materials Co., Ltd. | 52 |
4 |
| United Company RUSAL Engineering and Technology Centre LLC | 22 |
4 |
| Aluminium Smelter Developments Pty Ltd | 6 |
3 |
| Auckland UniServices Limited | 503 |
3 |
| KCL Enterprises, LLC | 3 |
3 |
| ThyssenKrupp Industrial Solutions AG | 729 |
3 |
| Siemens AG | 24990 |
2 |
| Sumitomo Electric Industries, Ltd. | 14131 |
2 |
| Other owners | 87 |