- All sections
- C - Chemistry; metallurgy
- C21B - Manufacture of iron or steel
- C21B 7/02 - Internal forms
Patent holdings for IPC class C21B 7/02
Total number of patents in this class: 8
10-year publication summary
|
0
|
0
|
0
|
1
|
1
|
1
|
1
|
0
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Paul Wurth S.A. | 392 |
2 |
| ArcelorMittal | 1887 |
1 |
| Berry Metal Company | 52 |
1 |
| POSCO | 2222 |
1 |
| Primetals Technologies, Limited | 30 |
1 |
| Beijing Shantie Technology Co., Ltd. | 2 |
1 |
| Wisdri Engineering & Research Incorporation Limited | 132 |
1 |
| Other owners | 0 |