- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 33/06 - Making ferrous alloys by melting using master alloys
Patent holdings for IPC class C22C 33/06
Total number of patents in this class: 158
10-year publication summary
|
1
|
4
|
2
|
10
|
9
|
8
|
15
|
25
|
20
|
24
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nanjing Iron&Steel Co.,Ltd. | 171 |
14 |
| Jiangsu Shagang Group Co., Ltd. | 98 |
12 |
| Institute of Research of Iron and Steel, Jiangsu Province/sha-steel, Co. Ltd | 70 |
11 |
| Shandong Iron and Steel Company Ltd | 33 |
6 |
| Bengang Steel Plates Co., Ltd. | 20 |
6 |
| Zhangjiagang Rongsheng Special Steel Co. Ltd. | 19 |
4 |
| Elkem AS | 60 |
3 |
| Jiangyin Xingcheng Special Steel Works Co., Ltd. | 63 |
3 |
| Zhangjiagang Hongchang Steel Plate Co., Ltd. | 11 |
3 |
| Laiwu Steel Yinshan Section Co., Ltd. | 21 |
3 |
| Toshiba Corporation | 12548 |
2 |
| Grirem Advanced Materials Co., Ltd. | 136 |
2 |
| Jiangsu University | 1124 |
2 |
| Korea Institute of Industrial Technology | 1015 |
2 |
| OCAS Onderzoekscentrum Voor Aanwending Van Staal N.V. | 4 |
2 |
| POSCO Co., Ltd. | 1592 |
2 |
| University of Science and Technology Beijing | 293 |
2 |
| Weir Minerals Australia, Ltd. | 307 |
2 |
| GE Infrastructure Technology, LLC | 6190 |
2 |
| CRRC Qishuyan Institute Co., Ltd. | 55 |
2 |
| Other owners | 73 |