- 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 5/02 - Heat treatment of cast-iron improving the malleability of grey cast-iron
Patent holdings for IPC class C21D 5/02
Total number of patents in this class: 8
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10281 |
2 |
| Federal-Mogul Powertrain LLC | 273 |
2 |
| Federal-Mogul Corporation | 240 |
1 |
| Ferropem | 13 |
1 |
| ThyssenKrupp Steel Europe AG | 992 |
1 |
| Wartsila Finland Oy | 754 |
1 |
| Other owners | 0 |