- All sections
- C - Chemistrymetallurgy
- C25C - Processes for the electrolytic production, recovery or refining of metalsapparatus therefor
- C25C 3/12 - Anodes
Patent holdings for IPC class C25C 3/12
Total number of patents in this class: 288
10-year publication summary
|
28
|
14
|
15
|
12
|
18
|
6
|
17
|
18
|
14
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rio Tinto ALCAN International Limited | 214 |
25 |
| Elysis Limited Partnership | 46 |
24 |
| Alcoa USA Corp. | 198 |
23 |
| Norsk Hydro ASA | 260 |
14 |
| BASF SE | 20961 |
9 |
| Fives Ecl. | 24 |
7 |
| ThyssenKrupp AG | 3303 |
7 |
| Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RUSAL Inzhenerno-tekhnologicheskiy Tsentr" | 133 |
6 |
| ThyssenKrupp Uhde GmbH | 334 |
6 |
| Rain Carbon Germany GmbH | 55 |
6 |
| Dubai Aluminium PJSC | 62 |
5 |
| E.c.l. | 23 |
5 |
| Fives Solios | 27 |
5 |
| ALCAN International Limited | 35 |
4 |
| Aluminium Smelter Developments Pty Ltd | 6 |
4 |
| Universite Laval | 717 |
4 |
| Ghislain Gonthier | 6 |
4 |
| Alcoa Inc. | 284 |
3 |
| Aluminum Corporation of China Limited | 35 |
3 |
| Institut National de La Recherche Scientifique | 256 |
3 |
| Other owners | 121 |