- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 19/08 - Enlarging tube diameter
Patent holdings for IPC class B21B 19/08
Total number of patents in this class: 6
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
|
|---|---|---|
| Nippon Steel Corporation | 6703 |
2 |
| Danieli & C. Officine Meccaniche S.p.A. | 713 |
1 |
| Repkon Machine and Tool Industry and Trade Inc. | 10 |
1 |
| SMS INNSE S.p.A. | 20 |
1 |
| Wieland-Werke AG | 350 |
1 |
| Other owners | 0 |