- 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: 346
10-year publication summary
|
12
|
8
|
16
|
18
|
31
|
31
|
27
|
31
|
38
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6895 |
39 |
| JFE Steel Corporation | 7549 |
28 |
| ArcelorMittal | 2680 |
22 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
19 |
| Baoshan Iron & Steel Co., Ltd. | 1104 |
16 |
| Nanjing Iron&Steel Co.,Ltd. | 186 |
16 |
| Nippon Yakin Kogyo Co., Ltd. | 74 |
12 |
| Bengang Steel Plates Co., Ltd. | 38 |
12 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
11 |
| Laiwu Steel Yinshan Section Co., Ltd. | 23 |
10 |
| Shandong Iron and Steel Company Ltd | 35 |
7 |
| United States Steel Corporation | 173 |
6 |
| Institute of Metal Research Chinese Academy of Sciences | 123 |
5 |
| Jiangyin Xingcheng Special Steel Works Co., Ltd. | 64 |
5 |
| NIPPON STEEL Stainless Steel Corporation | 277 |
5 |
| POSCO Co., Ltd. | 2015 |
4 |
| Wuhan University of Science and Technology | 70 |
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 |
| Other owners | 113 |