- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 3/16 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
Patent holdings for IPC class C22B 3/16
Total number of patents in this class: 322
10-year publication summary
|
29
|
19
|
14
|
24
|
16
|
22
|
31
|
47
|
39
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20432 |
7 |
| Centre National de La Recherche Scientifique | 10102 |
7 |
| Covoro Mining Solutions, LLC | 10 |
7 |
| Lixivia, Inc. | 33 |
6 |
| Yara International ASA | 798 |
6 |
| Robert Bosch GmbH | 41786 |
5 |
| Kyushu University, National University Corporation | 1627 |
5 |
| Nanyang Technological University | 1893 |
5 |
| Queen's University at Kingston | 534 |
5 |
| Enviroleach Technologies Inc. | 10 |
5 |
| Excir Works Corp. | 29 |
5 |
| Mining and Process Solutions Pty Ltd | 8 |
5 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10692 |
4 |
| Ecolab USA Inc. | 5341 |
4 |
| Freeport Minerals Corporation | 90 |
4 |
| Stillwater Mining Company | 7 |
4 |
| Technological Resources Pty. Limited | 443 |
4 |
| Toyota Tsusho Corporation | 170 |
4 |
| Universite de Montpellier | 960 |
4 |
| Prime Planet Energy & Solutions, Inc. | 771 |
4 |
| Other owners | 222 |