- All sections
- C - Chemistrymetallurgy
- C25C - Processes for the electrolytic production, recovery or refining of metalsapparatus therefor
- C25C 3/14 - Devices for feeding or crust breaking
Patent holdings for IPC class C25C 3/14
Total number of patents in this class: 87
10-year publication summary
|
7
|
9
|
5
|
5
|
1
|
5
|
3
|
5
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alcoa USA Corp. | 202 |
11 |
| Norsk Hydro ASA | 247 |
9 |
| Rio Tinto ALCAN International Limited | 219 |
8 |
| Elysis Limited Partnership | 52 |
8 |
| Fives Ecl. | 24 |
6 |
| Alumatiq AS | 9 |
5 |
| China Aluminum International Engineering Corporation Limited | 79 |
4 |
| Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RUSAL Inzhenerno-tekhnologicheskiy Tsentr" | 138 |
4 |
| Phoenix Tailings, Inc. | 40 |
4 |
| E.c.l. | 18 |
3 |
| Robert Bosch GmbH | 44209 |
2 |
| Asco Joucomatic SA | 7 |
2 |
| Mac Valves, Inc. | 79 |
2 |
| United Company RUSAL Engineering and Technology Centre LLC | 21 |
2 |
| Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RU | 17 |
2 |
| Alcoa Inc. | 254 |
1 |
| Aventics GmbH | 38 |
1 |
| Festo AG & Co. KG | 276 |
1 |
| North China University of Technology | 28 |
1 |
| Parker Hannifin Manufacturing Sweden AB | 13 |
1 |
| Other owners | 10 |