- All sections
- C - Chemistrymetallurgy
- C25C - Processes for the electrolytic production, recovery or refining of metalsapparatus therefor
- C25C 1/18 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of lead
Patent holdings for IPC class C25C 1/18
Total number of patents in this class: 77
10-year publication summary
|
13
|
12
|
9
|
11
|
2
|
1
|
5
|
6
|
8
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aqua Metals, Inc. | 38 |
18 |
| Verdeen Chemicals, Inc. | 20 |
10 |
| ENGITEC TECHNOLOGIES S.p.A. | 26 |
4 |
| BASF SE | 20912 |
3 |
| Battelle Energy Alliance, LLC | 581 |
3 |
| Veolia Environnement - ve | 16 |
2 |
| E.v.h. S.r.l. | 4 |
2 |
| Xiangyun Tenglong Investment Co., Ltd. | 2 |
2 |
| Yunnan Xiangyun Feilong Recycling Technology Co., Ltd | 2 |
2 |
| Halliburton Energy Services, Inc. | 20871 |
1 |
| Honeywell International Inc. | 13531 |
1 |
| Centre National de La Recherche Scientifique | 10418 |
1 |
| Black & Decker, Inc. | 2411 |
1 |
| The Board of Trustees of the Leland Stanford Junior University | 6403 |
1 |
| Johnson Controls Technology Company | 1434 |
1 |
| Imperial College Innovations Limited | 583 |
1 |
| Imperial Innovations Limited | 596 |
1 |
| Jernkontoret | 12 |
1 |
| Jiangxi Rare Earth and Rare Metals Tungsten Group Holding Co., Ltd. | 2 |
1 |
| JX Nippon Mining & Metals Corporation | 1489 |
1 |
| Other owners | 20 |