- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/215 - PurificationRecovery or purification of graphite formed in iron making, e.g. kish graphite
Patent holdings for IPC class C01B 32/215
Total number of patents in this class: 170
10-year publication summary
|
3
|
7
|
6
|
3
|
9
|
10
|
25
|
24
|
46
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Primobius GmbH | 15 |
12 |
| Talga Technologies Limited | 35 |
9 |
| Ascend Elements, Inc. | 75 |
8 |
| Mexichem Fluor Inc. | 11 |
7 |
| Carbonscape Limited | 26 |
6 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1272 |
6 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1227 |
6 |
| Ecograf Limited | 6 |
4 |
| POSCO Holdings Inc. | 698 |
4 |
| Hazer Group Ltd | 20 |
3 |
| Attero Recycling Pvt. Ltd. | 31 |
3 |
| Nouveau Monde Graphite Inc. | 15 |
3 |
| Unist(ulsan National Institute of Science and Technology) | 527 |
3 |
| Green Graphite Technologies Inc. | 7 |
3 |
| POSCO Future M Co., Ltd. | 151 |
3 |
| SkyNano LLC | 8 |
3 |
| Easymining Co., Ltd. | 6 |
3 |
| BASF SE | 21334 |
2 |
| The Regents of the University of California | 20987 |
2 |
| Commonwealth Scientific and Industrial Research Organisation | 1650 |
2 |
| Other owners | 78 |