- 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 9/673 - Details, accessories, or equipment peculiar to bell-type furnaces
Patent holdings for IPC class C21D 9/673
Total number of patents in this class: 25
10-year publication summary
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1
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0
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1
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0
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0
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2
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1
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0
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5
|
1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebner Industrieofenbau GmbH | 142 |
5 |
| Neturen Co., Ltd. | 198 |
3 |
| Neturen Takuto Co., Ltd. | 5 |
3 |
| JFE Steel Corporation | 7549 |
2 |
| LOI Thermprocess GmbH | 34 |
2 |
| Bengang Steel Plates Co., Ltd. | 38 |
2 |
| Linde GmbH | 1361 |
2 |
| ArcelorMittal | 2680 |
1 |
| Beijing GoldWind Science & Creation Windpower Equipment Co., Ltd. | 390 |
1 |
| SABIC Global Technologies B.V. | 4599 |
1 |
| Schwartz GmbH | 60 |
1 |
| NLMK International B.V. | 13 |
1 |
| Reinhold Mendritzki Kaltwalzwerk GmbH & Co. KG | 7 |
1 |
| Other owners | 0 |