- 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 1/02 - Dephosphorising or desulfurising
Patent holdings for IPC class C21C 1/02
Total number of patents in this class: 170
10-year publication summary
13
|
7
|
14
|
15
|
9
|
12
|
10
|
15
|
10
|
11
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
53 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
18 |
Nippon Steel Corporation | 5649 |
15 |
ArcelorMittal | 1887 |
6 |
POSCO | 2222 |
6 |
Foseco International Limited | 204 |
5 |
Nisshin Steel Co., Ltd. | 401 |
5 |
S.A. Lhoist Recherche et Developpement | 163 |
5 |
Almamet GmbH | 4 |
4 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
4 |
SMS Group GmbH | 1029 |
3 |
Jamipol Limited | 6 |
3 |
SMS Siemag Aktiengesellschaft | 529 |
2 |
Tata Steel Nederland Technology BV | 143 |
2 |
Tata Steel UK Limited | 162 |
2 |
Jiangsu Shagang Group Co., Ltd. | 52 |
2 |
Institute of Research of Iron and Steel, Jiangsu Province/sha-steel, Co. Ltd | 32 |
2 |
Zhangjiagang Yangtze River Cold Rolled Plate Co. Ltd | 8 |
2 |
BASF SE | 19740 |
1 |
Alamamet GmbH | 1 |
1 |
Other owners | 29 |