- 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: 301
10-year publication summary
|
14
|
15
|
12
|
18
|
7
|
17
|
18
|
15
|
20
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rio Tinto ALCAN International Limited | 218 |
25 |
| Elysis Limited Partnership | 49 |
25 |
| Alcoa USA Corp. | 201 |
24 |
| Norsk Hydro ASA | 251 |
14 |
| BASF SE | 21147 |
10 |
| ThyssenKrupp AG | 3456 |
8 |
| Rain Carbon Germany GmbH | 64 |
8 |
| Zhengzhou Non-Ferrous Metals Research Institute Co.Ltd of Chalco | 63 |
8 |
| Fives Ecl. | 24 |
7 |
| Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RUSAL Inzhenerno-tekhnologicheskiy Tsentr" | 140 |
7 |
| Dubai Aluminium PJSC | 67 |
6 |
| ThyssenKrupp Uhde GmbH | 368 |
6 |
| Fives Solios | 26 |
5 |
| Rain Carbon BV | 12 |
5 |
| ALCAN International Limited | 34 |
4 |
| Aluminium Smelter Developments Pty Ltd | 6 |
4 |
| E.c.l. | 20 |
4 |
| Universite Laval | 707 |
4 |
| Ghislain Gonthier | 7 |
4 |
| Alcoa Inc. | 267 |
3 |
| Other owners | 120 |