- 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: 688
Historique des publications depuis 10 ans
|
35
|
34
|
30
|
37
|
53
|
49
|
95
|
82
|
65
|
62
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Baoshan Iron & Steel Co., Ltd. | 1098 |
79 |
| Nanjing Iron&Steel Co.,Ltd. | 186 |
43 |
| Jiangsu Shagang Group Co., Ltd. | 112 |
20 |
| Jiangyin Xingcheng Special Steel Works Co., Ltd. | 64 |
15 |
| JFE Steel Corporation | 7483 |
12 |
| Angang Steel Company Limited | 48 |
11 |
| Institute of Research of Iron and Steel, Jiangsu Province/sha-steel, Co. Ltd | 77 |
11 |
| Sumitomo Metal Mining Co., Ltd. | 1968 |
10 |
| MM Metals USA, LLC | 14 |
9 |
| Institute of Research of Iron & Steel, Jiangsu Province/sha-steel, Co., Ltd. | 39 |
9 |
| ArcelorMittal | 2656 |
8 |
| Nippon Steel Corporation | 6839 |
8 |
| Northeastern University | 572 |
7 |
| Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. | 84 |
7 |
| JFE Material Co., Ltd. | 13 |
6 |
| Shandong Iron and Steel Company Ltd | 35 |
6 |
| Qingdao Yunlu Advanced Materials Technology Co., Ltd. | 45 |
6 |
| Outokumpu Oyj | 265 |
5 |
| POSCO | 2147 |
5 |
| Pathfinder Holdings Corp | 6 |
5 |
| Autres propriétaires | 406 |