- 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 9/63 - Continuous furnaces for strip or wire the strip being supported by a cushion of gas
Patent holdings for IPC class C21D 9/63
Total number of patents in this class: 31
10-year publication summary
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2
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6
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3
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4
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4
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3
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1
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0
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1
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebner Industrieofenbau GmbH | 142 |
4 |
| JFE Steel Corporation | 6809 |
3 |
| Otto Junker GmbH | 27 |
3 |
| BWG Bergwerk- und Walzwerk-maschinenbau GmbH | 18 |
2 |
| Cockerill Maintenance & Ingenierie SA | 80 |
2 |
| Redex | 22 |
2 |
| Corning Incorporated | 10246 |
1 |
| Aleris Rolled Products, Inc. | 3 |
1 |
| Daido Steel Co., Ltd. | 269 |
1 |
| Linde Aktiengesellschaft | 1517 |
1 |
| Outokumpu Oyj | 261 |
1 |
| Schwartz GmbH | 58 |
1 |
| SMIT Thermal Solutions B.V. | 5 |
1 |
| SMS Group GmbH | 1118 |
1 |
| CMI Thermline Services | 4 |
1 |
| Messer Industries USA, Inc. | 120 |
1 |
| Redex S.A. | 7 |
1 |
| Alexander Wilden Beteiligungen GmbH | 14 |
1 |
| ANDRITZ Metals Germany GmbH | 20 |
1 |
| John Cockerill S.A. | 106 |
1 |
| Other owners | 1 |