- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 3/34 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing sulfur
Patent holdings for IPC class C22B 3/34
Total number of patents in this class: 16
10-year publication summary
|
0
|
5
|
1
|
2
|
0
|
0
|
0
|
3
|
1
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Excir Works Corp. | 28 |
5 |
| University of Saskatchewan | 450 |
2 |
| BASF SE | 19740 |
1 |
| FUJIFILM Corporation | 27102 |
1 |
| Akita University | 88 |
1 |
| Beijing University of Technology | 437 |
1 |
| ENI S.p.A. | 1241 |
1 |
| UT-Battelle, LLC | 1333 |
1 |
| Young Poong Corporation | 4 |
1 |
| Hunan Jin Yuan New Materials Joint Stock Company Limited | 16 |
1 |
| Institute of Applied Chemistry, Jiangxi Academy of Sciences | 2 |
1 |
| Other owners | 0 |