- All sections
- C - Chemistry; metallurgy
- C25C - Processes for the electrolytic production, recovery or refining of metals; apparatus therefor
- C25C 1/20 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
Patent holdings for IPC class C25C 1/20
Total number of patents in this class: 137
10-year publication summary
11
|
17
|
17
|
17
|
8
|
13
|
7
|
14
|
20
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Excir Works Corp. | 28 |
7 |
Clene Nanomedicine, Inc. | 32 |
6 |
Institute of Process Engineering, Chinese Academy of Sciences | 250 |
5 |
Purdue Research Foundation | 3277 |
4 |
Greengold Engineering Pty Ltd | 5 |
4 |
Novellus Systems, Inc. | 559 |
3 |
Battelle Energy Alliance, LLC | 569 |
3 |
Bromine Compounds Ltd. | 196 |
3 |
Greene Lyon Group, Inc. | 17 |
3 |
Mitsui Mining & Smelting Co., Ltd. | 1373 |
3 |
Outokumpu Oyj | 250 |
3 |
Universidad Autonoma Metropolitana | 22 |
3 |
Orca Holdings, LLC | 8 |
3 |
Massachusetts Institute of Technology | 9795 |
2 |
The United States of America as represented by the Secretary of the Navy | 2734 |
2 |
Lexmark International, Inc. | 1793 |
2 |
Aalto University Foundation | 253 |
2 |
Aqua Metals, Inc. | 39 |
2 |
Carnegie Mellon University | 1405 |
2 |
Heraeus Deutschland GmbH & Co. KG | 643 |
2 |
Other owners | 73 |