- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
Patent holdings for IPC class C22B 3/06
Total number of patents in this class: 1019
10-year publication summary
|
28
|
28
|
41
|
33
|
53
|
68
|
84
|
106
|
120
|
52
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1925 |
43 |
| Freeport Minerals Corporation | 128 |
31 |
| JX Nippon Mining & Metals Corporation | 1470 |
22 |
| JX Metals Circular Solutions Co., Ltd. | 74 |
16 |
| Korea Zinc Co., Ltd. | 144 |
14 |
| Electrasteel, Inc. | 44 |
14 |
| Asaka Riken Co., Ltd. | 51 |
13 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1248 |
13 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1217 |
13 |
| JFE Steel Corporation | 7300 |
12 |
| Gem Co., Ltd. | 314 |
11 |
| Technological Resources Pty. Limited | 443 |
11 |
| PT Qmb New Energy Materials | 217 |
11 |
| Mitsubishi Materials Corporation | 2461 |
10 |
| LiLAC Solutions, Inc. | 62 |
10 |
| Icsip Pty Ltd | 21 |
9 |
| Kemco | 48 |
9 |
| Murata Manufacturing Co., Ltd. | 25455 |
8 |
| PT Gem Indonesia New Energy Materials | 150 |
8 |
| Centre National de La Recherche Scientifique | 10856 |
7 |
| Other owners | 734 |