- 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 5/32 - Blowing from above
Patent holdings for IPC class C21C 5/32
Total number of patents in this class: 56
10-year publication summary
3
|
3
|
2
|
2
|
3
|
5
|
4
|
9
|
2
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
12 |
ArcelorMittal | 1887 |
5 |
SMS Group GmbH | 1029 |
5 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
3 |
SMS Siemag Aktiengesellschaft | 529 |
3 |
Technological Resources Pty. Limited | 444 |
3 |
Shandong Molong Petroleum Machinery Co., Ltd. | 22 |
3 |
University of Science and Technology Beijing | 245 |
2 |
Vesuvius Refratarios Ltda | 8 |
2 |
Siemens VAI Metals Technologies GmbH | 233 |
1 |
Berry Metal Company | 52 |
1 |
The BOC Group, Inc. | 47 |
1 |
The BOC Group plc | 54 |
1 |
Magnesita Refratarios S/A | 9 |
1 |
Nippon Steel Corporation | 5649 |
1 |
POSCO Co., Ltd. | 1059 |
1 |
Tata Steel Limited | 184 |
1 |
Tenova Goodfellow Inc. | 44 |
1 |
Vesuvius Group S.A. | 92 |
1 |
Soudobeam SA | 6 |
1 |
Other owners | 7 |