- Sections
- C - Chimiemétallurgie
- C22C - Alliages
- C22C 33/04 - Fabrication des alliages ferreux par fusion
Détention brevets de la classe C22C 33/04
Brevets de cette classe: 612
Historique des publications depuis 10 ans
|
34
|
32
|
29
|
33
|
48
|
47
|
92
|
80
|
58
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Baoshan Iron & Steel Co., Ltd. | 1037 |
73 |
| Nanjing Iron&Steel Co.,Ltd. | 174 |
38 |
| Jiangsu Shagang Group Co., Ltd. | 101 |
18 |
| Jiangyin Xingcheng Special Steel Works Co., Ltd. | 63 |
14 |
| Institute of Research of Iron and Steel, Jiangsu Province/sha-steel, Co. Ltd | 70 |
11 |
| Sumitomo Metal Mining Co., Ltd. | 1892 |
10 |
| JFE Steel Corporation | 7149 |
8 |
| Nippon Steel Corporation | 6586 |
8 |
| MM Metals USA, LLC | 13 |
8 |
| Institute of Research of Iron & Steel, Jiangsu Province/sha-steel, Co., Ltd. | 36 |
8 |
| Northeastern University | 553 |
7 |
| JFE Material Co., Ltd. | 13 |
6 |
| Shandong Iron and Steel Company Ltd | 34 |
6 |
| Qingdao Yunlu Advanced Materials Technology Co., Ltd. | 41 |
6 |
| Angang Steel Company Limited | 30 |
5 |
| Outokumpu Oyj | 263 |
5 |
| POSCO | 2156 |
5 |
| Zhangjiagang Yangtze River Cold Rolled Plate Co. Ltd | 18 |
5 |
| Fujian Golden Dragon Rare-earth Co., Ltd. | 71 |
5 |
| Allium Engineering, Inc. | 6 |
5 |
| Autres propriétaires | 361 |