- All sections
- C - Chemistrymetallurgy
- C25C - Processes for the electrolytic production, recovery or refining of metalsapparatus therefor
- C25C 3/16 - Electric current supply devices, e.g. bus bars
Patent holdings for IPC class C25C 3/16
Total number of patents in this class: 214
10-year publication summary
|
12
|
15
|
14
|
8
|
7
|
8
|
9
|
17
|
6
|
4
|
| 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 | 219 |
24 |
| Tokai Cobex GmbH | 46 |
16 |
| Norsk Hydro ASA | 246 |
14 |
| Dubai Aluminium PJSC | 68 |
12 |
| Novalum SA | 14 |
12 |
| Alcoa USA Corp. | 202 |
10 |
| SGL Carbon SE | 404 |
9 |
| Elysis Limited Partnership | 53 |
7 |
| China Aluminum International Engineering Corporation Limited | 79 |
6 |
| E.c.l. | 18 |
5 |
| Storvik AS | 9 |
5 |
| Hatch Ltd. | 221 |
4 |
| Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RUSAL Inzhenerno-tekhnologicheskiy Tsentr" | 138 |
4 |
| SEC Carbon, Limited | 31 |
4 |
| United Company RUSAL Engineering and Technology Centre LLC | 21 |
4 |
| Boston Electrometallurgical Corporation | 22 |
4 |
| Zhengzhou Non-Ferrous Metals Research Institute Co.Ltd of Chalco | 80 |
4 |
| COBEX GmbH | 3 |
3 |
| R + D Carbon Ltd. | 4 |
3 |
| Metsol AG | 3 |
3 |
| Other owners | 61 |