- All sections
- C - Chemistrymetallurgy
- C21D - Modifying the physical structure of ferrous metalsgeneral devices for heat treatment of ferrous or non-ferrous metals or alloysmaking metal malleable, e.g. by decarburisation or tempering
- C21D 9/573 - Continuous furnaces for strip or wire with cooling
Patent holdings for IPC class C21D 9/573
Total number of patents in this class: 276
10-year publication summary
|
14
|
23
|
20
|
20
|
24
|
22
|
17
|
22
|
16
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2344 |
39 |
| JFE Steel Corporation | 6992 |
39 |
| Fives Stein | 105 |
21 |
| Nippon Steel Corporation | 6405 |
9 |
| NV Bekaert SA | 742 |
9 |
| POSCO Co., Ltd. | 1576 |
7 |
| Cockerill Maintenance & Ingenierie SA | 80 |
5 |
| Primetals Technologies Japan, Ltd. | 167 |
5 |
| Siemens AG | 24346 |
4 |
| Ebner Industrieofenbau GmbH | 141 |
4 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
4 |
| Novelis Inc. | 766 |
4 |
| SMS Group GmbH | 1134 |
4 |
| Michelin Recherche et Technique S.A. | 2155 |
3 |
| ArcelorMittal France | 93 |
3 |
| Hydro-Quebec | 653 |
3 |
| POSCO | 2178 |
3 |
| Primetals Technologies Austria GmbH | 546 |
3 |
| Compagnie Generale des Etablissements Michelin | 4772 |
3 |
| Wisdri Engineering & Research Incorporation Limited | 212 |
3 |
| Other owners | 101 |