- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 41/00 - Obtaining germanium
Patent holdings for IPC class C22B 41/00
Total number of patents in this class: 36
10-year publication summary
|
4
|
2
|
2
|
0
|
0
|
1
|
2
|
2
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yunnan Dongchang Metal Tech Co., Ltd. | 4 |
4 |
| Yunnan Lincang Xinyuan Germanium Industry Co., Ltd. | 4 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11127 |
2 |
| Freeport Minerals Corporation | 139 |
2 |
| Metso Finland Oy | 692 |
2 |
| Kunming Metallurgical Research Institute Co., Ltd. | 19 |
2 |
| Sumitomo Electric Industries, Ltd. | 16448 |
1 |
| Sumitomo Chemical Company, Limited | 8968 |
1 |
| 5N Plus Inc. | 48 |
1 |
| Central South University | 496 |
1 |
| Ecometales Limited | 18 |
1 |
| Ecotec Gestione Impianti S.r.l. | 11 |
1 |
| Gelest Technologies, Inc. | 16 |
1 |
| The Governors of the University of Alberta | 874 |
1 |
| Korea University Research and Business Foundation | 3286 |
1 |
| Outotec Oyj | 234 |
1 |
| Southern Research Institute | 204 |
1 |
| Umicore | 776 |
1 |
| Universidad Autonoma de Madrid | 203 |
1 |
| Universidad de Sevilla | 367 |
1 |
| Other owners | 6 |