- All sections
- B - Performing operations; transporting
- B28B - Shaping clay or other ceramic compositions; shaping slag; shaping mixtures containing cementitious material, e.g. plaster
- B28B 21/92 - Methods or apparatus for treating or reshaping
Patent holdings for IPC class B28B 21/92
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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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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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
|
|---|---|---|
| Ibiden Co., Ltd. | 1724 |
1 |
| American Standard Intl. Inc. | 1 |
1 |
| Construction Research & Technology GmbH | 640 |
1 |
| Rohr, Inc. | 653 |
1 |
| Other owners | 0 |