- 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: 274
10-year publication summary
|
13
|
29
|
19
|
14
|
24
|
16
|
21
|
31
|
47
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mining and Process Solutions Pty Ltd | 11 |
10 |
| BASF SE | 19740 |
7 |
| Lixivia, Inc. | 36 |
7 |
| Yara International ASA | 753 |
6 |
| Centre National de La Recherche Scientifique | 9632 |
5 |
| Robert Bosch GmbH | 40953 |
5 |
| Queen's University at Kingston | 517 |
5 |
| Enviroleach Technologies Inc. | 10 |
5 |
| Excir Works Corp. | 28 |
5 |
| Ecolab USA Inc. | 5190 |
4 |
| Nanyang Technological University | 1739 |
4 |
| Technological Resources Pty. Limited | 444 |
4 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 1906 |
3 |
| Curtin University of Technology | 65 |
3 |
| Freeport Minerals Corporation | 80 |
3 |
| Institut National des Sciences Appliquees de Rouen (insa) | 29 |
3 |
| JX Nippon Mining & Metals Corporation | 1576 |
3 |
| Kyushu University, National University Corporation | 1572 |
3 |
| Stillwater Mining Company | 6 |
3 |
| Toyota Tsusho Corporation | 163 |
3 |
| Other owners | 183 |