- All sections
- C - Chemistry; metallurgy
- C21D - Modifying the physical structure of ferrous metals; general devices for heat treatment of ferrous or non-ferrous metals or alloys; making metal malleable, e.g. by decarburisation or tempering
- C21D 1/08 - Surface hardening with flames
Patent holdings for IPC class C21D 1/08
Total number of patents in this class: 11
10-year publication summary
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2
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2
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1
|
3
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0
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3
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0
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0
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0
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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
|
|---|---|---|
| AGA AB | 11 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
1 |
| Autotech Engineering A.I.E. | 41 |
1 |
| JFE Steel Corporation | 6557 |
1 |
| Micro Motion, Inc. | 1019 |
1 |
| Nivarox-FAR S.A. | 272 |
1 |
| POSCO | 2204 |
1 |
| Yanshan University | 143 |
1 |
| American Manufacturing Innovators, Inc. | 1 |
1 |
| Patentus Spółka Akcyjna | 2 |
1 |
| Oregon Tool, Inc. | 284 |
1 |
| Other owners | 0 |