- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 4/00 - Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
Patent holdings for IPC class C22B 4/00
Total number of patents in this class: 97
10-year publication summary
|
6
|
5
|
6
|
4
|
9
|
3
|
2
|
5
|
4
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Metallo Belgium | 50 |
5 |
| Centre National de La Recherche Scientifique | 11122 |
4 |
| Technological Resources Pty. Limited | 443 |
4 |
| Clene Nanomedicine, Inc. | 34 |
3 |
| Korea University Research and Business Foundation | 3309 |
3 |
| Schlumberger Technology Corporation | 11961 |
2 |
| Ecole Nationale Superieure de Chimie de Paris | 64 |
2 |
| Elkem AS | 55 |
2 |
| Kobe Steel, Ltd. | 899 |
2 |
| Korea Hydro & Nuclear Power Co., Ltd. | 568 |
2 |
| Umicore | 779 |
2 |
| William Marsh Rice University | 1081 |
2 |
| Paris Sciences et Lettres - Quartier Latin | 244 |
2 |
| Innceinnmat, S.L. | 3 |
2 |
| Clean Resources Pte. Ltd | 7 |
2 |
| Tetronics Technologies Limited | 7 |
2 |
| General Electric Company | 13999 |
1 |
| Schlumberger Canada Limited | 7616 |
1 |
| Schlumberger Technology B.v. | 5289 |
1 |
| Evonik Degussa GmbH | 1343 |
1 |
| Other owners | 52 |