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  • C - Chemistrymetallurgy
  • C25C - Processes for the electrolytic production, recovery or refining of metalsapparatus 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: 257

10-year publication summary

12
28
17
19
16
21
7
13
12
6
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Dubai Aluminium PJSC
62
35
Alcoa USA Corp.
198
18
Rio Tinto ALCAN International Limited
216
18
Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RUSAL Inzhenerno-tekhnologicheskiy Tsentr"
132
13
Norsk Hydro ASA
260
11
BASF SE
20892
8
E.c.l.
23
7
Fives Ecl.
23
5
Aluminum Corporation of China Limited
35
4
Newsouth Innovations Pty Limited
591
4
Shenzhen Sunxing Light Alloys Materials Co., Ltd.
51
4
ThyssenKrupp AG
3276
4
United Company RUSAL Engineering and Technology Centre LLC
21
4
Elysis Limited Partnership
47
4
Obshchestvo S Ogranichennoy Otvetstvennost'yu "obedinennaya Kompaniya RU
19
4
Aluminium Smelter Developments Pty Ltd
6
3
Auckland UniServices Limited
496
3
KCL Enterprises, LLC
3
3
Keystone Metals Recovery Inc.
4
3
ThyssenKrupp Uhde GmbH
331
3
Other owners 99

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