- 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 7/068 - Decarburising
Patent holdings for IPC class C21C 7/068
Total number of patents in this class: 126
10-year publication summary
|
3
|
5
|
10
|
7
|
5
|
2
|
8
|
14
|
16
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7012 |
20 |
| Nippon Yakin Kogyo Co., Ltd. | 68 |
7 |
| Nippon Steel Corporation | 6452 |
6 |
| SMS Siemag Aktiengesellschaft | 504 |
6 |
| Baoshan Iron & Steel Co., Ltd. | 975 |
5 |
| Nucor Corporation | 418 |
5 |
| SunCoke Technology and Development LLC | 240 |
5 |
| United States Steel Corporation | 173 |
4 |
| ArcelorMittal | 2360 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2880 |
3 |
| Northeastern University | 546 |
3 |
| University of Science and Technology Beijing | 290 |
3 |
| Jiangsu Shagang Group Co., Ltd. | 97 |
3 |
| Siemens AG | 24363 |
2 |
| ATI Properties LLC | 202 |
2 |
| Hyundai Steel Company | 451 |
2 |
| Maanshan Iron & Steel Co. Ltd. | 30 |
2 |
| Tenova S.p.A. | 154 |
2 |
| Beemetal Corp. | 6 |
2 |
| Nanjing Iron&Steel Co.,Ltd. | 168 |
2 |
| Other owners | 39 |