- 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 9/24 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for saw blades
Patent holdings for IPC class C21D 9/24
Total number of patents in this class: 16
10-year publication summary
2
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1
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2
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2
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3
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2
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3
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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
|
---|---|---|
Hitachi Metals, Ltd. | 2026 |
3 |
Husqvarna AB | 2879 |
2 |
Deere & Company | 7318 |
1 |
JTEKT Corporation | 2435 |
1 |
B & J Rocket Sales AG | 35 |
1 |
Groz-Beckert KG | 378 |
1 |
Liebherr-components Biberach GmbH | 225 |
1 |
Nippon Steel Corporation | 5991 |
1 |
voestalpine Precision Strip GmbH | 23 |
1 |
Wikus Saegenfabrik Wilhelm H. Kullmann GmbH & Co. KG | 11 |
1 |
Liberty Performance Steels Limited | 4 |
1 |
Qsgs Technology Grażyna Klepuszewska | 1 |
1 |
Oregon Tool, Inc. | 284 |
1 |
Other owners | 0 |