- All sections
- C - Chemistry; metallurgy
- C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steel; treatment in molten state of ferrous alloys
- C21C 5/54 - Processes yielding slags of special composition
Patent holdings for IPC class C21C 5/54
Total number of patents in this class: 80
10-year publication summary
|
2
|
2
|
6
|
1
|
10
|
2
|
13
|
5
|
9
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2060 |
7 |
| Tata Steel Limited | 190 |
5 |
| JFE Steel Corporation | 6549 |
4 |
| SMS Siemag Aktiengesellschaft | 515 |
4 |
| ThyssenKrupp Steel Europe AG | 956 |
4 |
| Hyundai Steel Company | 350 |
3 |
| S.A. Lhoist Recherche et Developpement | 168 |
3 |
| Pipex Energy S.r.l. | 6 |
3 |
| Cambridge Enterprise Limited | 1147 |
2 |
| Danieli & C. Officine Meccaniche S.p.A. | 705 |
2 |
| Ecomaister Co., Ltd. | 15 |
2 |
| Nippon Steel Corporation | 6000 |
2 |
| Nippon Yakin Kogyo Co., Ltd. | 57 |
2 |
| Recoval Belgium | 13 |
2 |
| SMS Group GmbH | 1079 |
2 |
| Orbix Solutions | 6 |
2 |
| General Electric Company | 17783 |
1 |
| Toyota Motor Corporation | 30398 |
1 |
| Alcoa USA Corp. | 193 |
1 |
| Baoshan Iron & Steel Co., Ltd. | 892 |
1 |
| Other owners | 27 |