- All sections
- C - Chemistrymetallurgy
- C21B - Manufacture of iron or steel
- C21B 9/16 - Cooling or drying the hot-blast
Patent holdings for IPC class C21B 9/16
Total number of patents in this class: 7
10-year publication summary
0
|
0
|
0
|
0
|
0
|
0
|
1
|
0
|
0
|
0
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Paul Wurth S.A. | 409 |
2 |
Paul Wurth Deutschland GmbH | 28 |
2 |
Siemens Plc | 71 |
1 |
Paul Wurth Refractory & Engineering GmbH | 12 |
1 |
Excello Co., Ltd. | 12 |
1 |
Other owners | 0 |