- All sections
- C - Chemistrymetallurgy
- C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steeltreatment in molten state of ferrous alloys
- C21C 7/06 - Deoxidising, e.g. killing
Patent holdings for IPC class C21C 7/06
Total number of patents in this class: 317
10-year publication summary
|
13
|
12
|
7
|
14
|
16
|
31
|
28
|
24
|
28
|
30
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6344 |
36 |
| JFE Steel Corporation | 6935 |
25 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
19 |
| ArcelorMittal | 2324 |
17 |
| Nanjing Iron&Steel Co.,Ltd. | 166 |
16 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2877 |
15 |
| Baoshan Iron & Steel Co., Ltd. | 966 |
14 |
| Nippon Yakin Kogyo Co., Ltd. | 67 |
9 |
| Laiwu Steel Yinshan Section Co., Ltd. | 21 |
9 |
| United States Steel Corporation | 174 |
6 |
| Shandong Iron and Steel Company Ltd | 34 |
6 |
| Institute of Metal Research Chinese Academy of Sciences | 121 |
5 |
| Jiangyin Xingcheng Special Steel Works Co., Ltd. | 62 |
5 |
| NIPPON STEEL Stainless Steel Corporation | 282 |
5 |
| Sumitomo Metal Industries, Ltd. | 367 |
4 |
| Wuhan University of Science and Technology | 66 |
4 |
| Sino-energy Huayuan Floating Wind Institute | 6 |
4 |
| Wuke Composite Materials (haikou) Technology Co., Ltd. | 4 |
4 |
| Wuke Xincai (Wuhan) Technology Co., Ltd. | 4 |
4 |
| Affival | 26 |
3 |
| Other owners | 107 |