- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 3/00 - Extraction of metal compounds from ores or concentrates by wet processes
Patent holdings for IPC class C22B 3/00
Total number of patents in this class: 1780
10-year publication summary
|
124
|
97
|
92
|
101
|
92
|
93
|
148
|
162
|
199
|
109
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21308 |
54 |
| Sumitomo Metal Mining Co., Ltd. | 1978 |
52 |
| Umicore | 775 |
45 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11124 |
28 |
| Metso Finland Oy | 688 |
28 |
| Korea Zinc Co., Ltd. | 171 |
27 |
| Outotec (Finland) Oy | 455 |
26 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1267 |
21 |
| JX Metals Circular Solutions Co., Ltd. | 82 |
21 |
| Gem Co., Ltd. | 356 |
20 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1226 |
20 |
| Kemco | 54 |
19 |
| Centre National de La Recherche Scientifique | 11026 |
17 |
| Jetti Resources, LLC | 39 |
17 |
| Ascend Elements, Inc. | 86 |
17 |
| PT Gem Indonesia New Energy Materials | 151 |
16 |
| Heraeus Deutschland GmbH & Co. KG | 403 |
15 |
| PT Qmb New Energy Materials | 253 |
15 |
| JX Nippon Mining & Metals Corporation | 1461 |
14 |
| Hunan Brunp EV Recycling Co., Ltd. | 378 |
14 |
| Other owners | 1294 |