- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 33/02 - Preventing fracture of rolls
Patent holdings for IPC class B21B 33/02
Total number of patents in this class: 2
10-year publication summary
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0
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0
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0
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0
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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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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
|
|---|---|---|
| Q.E.D. Environmental Systems, Inc. | 90 |
1 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 976 |
1 |
| Other owners | 0 |