- All sections
- B - Performing operationstransporting
- B28B - Shaping clay or other ceramic compositionsshaping slagshaping mixtures containing cementitious material, e.g. plaster
- B28B 21/68 - Methods or machines specially adapted for the production of tubular articles incorporating reinforcements and applying centrifugal forces
Patent holdings for IPC class B28B 21/68
Total number of patents in this class: 0
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
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This class
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| Other owners | 0 |