- Sections
- C - Chimie; métallurgie
- C21B - Fabrication du fer ou de l'acier
- C21B 15/00 - Autres procédés pour la fabrication de fer à partir de composés de fer
Détention brevets de la classe C21B 15/00
Brevets de cette classe: 125
Historique des publications depuis 10 ans
|
12
|
22
|
9
|
4
|
6
|
2
|
3
|
9
|
8
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| ExxonMobil Research And Engineering Company | 2830 |
13 |
| Nu-Iron Technology, LLC | 44 |
6 |
| Technological Resources Pty. Limited | 444 |
6 |
| Hazer Group Ltd | 13 |
4 |
| Freeport Minerals Corporation | 80 |
3 |
| Korea Zinc Co., Ltd. | 41 |
3 |
| ArcelorMittal | 1887 |
2 |
| Austpac Resources N.L. | 3 |
2 |
| Biosigma S.A. | 13 |
2 |
| JFE Steel Corporation | 6067 |
2 |
| Great Western Iron Ore Properties Inc. | 2 |
2 |
| AEM Canada Group Inc. | 13 |
2 |
| Electrasteel, Inc. | 28 |
2 |
| Negative Emissions Materials, Inc. | 10 |
2 |
| Xerox Corporation | 7503 |
1 |
| The United States of America as represented by the Secretary of the Navy | 2734 |
1 |
| Air Products and Chemicals, Inc. | 1448 |
1 |
| Korea Institute of Science and Technology | 2022 |
1 |
| Barrick Gold Corporation | 73 |
1 |
| Air Liquide Canada Inc. | 43 |
1 |
| Autres propriétaires | 68 |