- All sections
- B - Performing operations; transporting
- B28B - Shaping clay or other ceramic compositions; shaping slag; shaping mixtures containing cementitious material, e.g. plaster
- B28B 21/32 - Feeding the material into the moulds
Patent holdings for IPC class B28B 21/32
Total number of patents in this class: 4
10-year publication summary
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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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0
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0
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 14195 |
1 |
| Fuji Concrete Industry Co., Ltd. | 3 |
1 |
| Jiangsu Dongpu Pile.co., Ltd. | 3 |
1 |
| Nippon Zenith Pipe Co.,Ltd. | 1 |
1 |
| Other owners | 0 |