- All sections
- C - Chemistrymetallurgy
- C21B - Manufacture of iron or steel
- C21B 7/14 - Discharging devices, e.g. for slag
Patent holdings for IPC class C21B 7/14
Total number of patents in this class: 69
10-year publication summary
|
5
|
0
|
3
|
4
|
1
|
7
|
6
|
2
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6816 |
5 |
| Novelis Inc. | 744 |
4 |
| POSCO | 2186 |
3 |
| Enduro Composites, Inc. | 28 |
2 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3967 |
2 |
| Midrex Technologies, Inc. | 109 |
2 |
| Nippon Steel Corporation | 6207 |
2 |
| Outotec (Finland) Oy | 480 |
2 |
| Paul Wurth S.A. | 418 |
2 |
| Primetals Technologies Austria GmbH | 531 |
2 |
| TMT Tapping-Measuring-Technology GmbH | 13 |
2 |
| Wisdri Engineering & Research Incorporation Limited | 208 |
2 |
| Rewell Refractory Zhengzhou Co., Ltd | 2 |
2 |
| Siemens VAI Metals Technologies GmbH | 222 |
1 |
| Air Liquide Deutschland G.m.b.H | 62 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
1 |
| Baoshan Iron & Steel Co., Ltd. | 959 |
1 |
| BBC Co., Ltd. | 17 |
1 |
| Cisdi Engineering Co., Ltd. | 100 |
1 |
| Danieli & C. Officine Meccaniche S.p.A. | 716 |
1 |
| Other owners | 30 |