- 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: 144
10-year publication summary
|
5
|
11
|
7
|
6
|
4
|
8
|
16
|
16
|
20
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7589 |
21 |
| SunCoke Technology and Development LLC | 227 |
12 |
| Nippon Yakin Kogyo Co., Ltd. | 74 |
10 |
| Nippon Steel Corporation | 6932 |
8 |
| Baoshan Iron & Steel Co., Ltd. | 1114 |
7 |
| SMS Siemag Aktiengesellschaft | 484 |
6 |
| Nucor Corporation | 415 |
5 |
| United States Steel Corporation | 173 |
4 |
| ArcelorMittal | 2714 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
3 |
| Northeastern University | 577 |
3 |
| University of Science and Technology Beijing | 314 |
3 |
| Jiangsu Shagang Group Co., Ltd. | 115 |
3 |
| Siemens AG | 23996 |
2 |
| ATI Properties LLC | 200 |
2 |
| Hyundai Steel Company | 539 |
2 |
| Tenova S.p.A. | 160 |
2 |
| Beemetal Corp. | 5 |
2 |
| Nanjing Iron&Steel Co.,Ltd. | 186 |
2 |
| NIPPON STEEL Stainless Steel Corporation | 277 |
2 |
| Other owners | 42 |