- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 39/04 - Lifting or lowering work for conveying purposes, e.g. tilting tables arranged immediately in front of or behind the pass
Patent holdings for IPC class B21B 39/04
Total number of patents in this class: 18
10-year publication summary
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0
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1
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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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1
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4148 |
8 |
| Materion Newton Inc. | 65 |
5 |
| Voestalpine Schienen GmbH | 14 |
4 |
| Wisdri Engineering & Research Incorporation Limited | 231 |
1 |
| Other owners | 0 |