- 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 1/48 - Metal baths
Patent holdings for IPC class C21D 1/48
Total number of patents in this class: 12
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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1
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1
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2
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0
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1
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokyo Rope Mfg. Co., Ltd. | 67 |
3 |
| National University Corporation Kumamoto University | 392 |
2 |
| Nippon Steel Corporation | 6365 |
2 |
| Benteler Automobiltechnik GmbH | 288 |
1 |
| POSCO Co., Ltd. | 1574 |
1 |
| Salzgitter Flachstahl GmbH | 159 |
1 |
| Tokyo Rope Manufacturing Co., Ltd. | 45 |
1 |
| Bührer Traktorenfabrik AG | 3 |
1 |
| Other owners | 0 |