- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
Patent holdings for IPC class C22B 3/38
Total number of patents in this class: 222
10-year publication summary
|
5
|
11
|
17
|
15
|
17
|
7
|
13
|
11
|
34
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1670 |
17 |
| Guangdong Brunp Recycling Technology Co., Ltd | 674 |
14 |
| Hunan Brunp Recycling Technology Co., Ltd. | 622 |
14 |
| JX Nippon Mining & Metals Corporation | 1576 |
11 |
| Hunan Brunp EV Recycling Co., Ltd. | 327 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
6 |
| Centre National de La Recherche Scientifique | 9632 |
5 |
| Changchun Institute of Applied Chemistry Chinese Academy of Sciences | 101 |
5 |
| Seren Technologies Limited | 9 |
5 |
| Merck Patent GmbH | 5909 |
4 |
| Adionics | 19 |
4 |
| Asaka Riken Co., Ltd. | 35 |
4 |
| Universite de Montpellier | 920 |
4 |
| Ecopro Materials, Co., Ltd. | 17 |
4 |
| BASF SE | 19740 |
3 |
| Bromine Compounds Ltd. | 196 |
3 |
| Kyushu University, National University Corporation | 1572 |
3 |
| Orbite Aluminae Inc. | 14 |
3 |
| Tenova Advanced Technologies Ltd. | 16 |
3 |
| Hunan Brunp Vehicles Recycling Co., Ltd. | 73 |
3 |
| Other owners | 98 |