- 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 9/54 - Furnaces for treating strips or wire
Patent holdings for IPC class C21D 9/54
Total number of patents in this class: 44
10-year publication summary
|
5
|
3
|
1
|
2
|
3
|
4
|
0
|
0
|
3
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| POSCO Co., Ltd. | 2025 |
3 |
| SMS Group GmbH | 1207 |
3 |
| ArcelorMittal | 2720 |
2 |
| Ebner Industrieofenbau GmbH | 142 |
2 |
| JFE Steel Corporation | 7599 |
2 |
| The Boeing Company | 20196 |
1 |
| Bayerische Motoren Werke Aktiengesellschaft | 15393 |
1 |
| Air Products GmbH | 1 |
1 |
| ArcelorMittal France | 68 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 208 |
1 |
| Arcelormittal-stainless France | 5 |
1 |
| Automat Industrial, S.L. | 2 |
1 |
| Automation, Press and Tooling, A.P.& T. Aktiebolag | 35 |
1 |
| Gautschi Engineering GmbH | 12 |
1 |
| GDF Suez | 36 |
1 |
| Hutchinson Technology Incorporated | 305 |
1 |
| KTS Wire Ltd. | 1 |
1 |
| Metal Link, Inc. | 6 |
1 |
| Muhr und Bender KG | 91 |
1 |
| Neturen Co., Ltd. | 198 |
1 |
| Other owners | 17 |