- All sections
- B - Performing operations; transporting
- B28B - Shaping clay or other ceramic compositions; shaping slag; shaping mixtures containing cementitious material, e.g. plaster
- B28B 21/42 - Methods or machines specially adapted for the production of tubular articles by shaping on or against mandrels or like moulding surfaces
Patent holdings for IPC class B28B 21/42
Total number of patents in this class: 11
10-year publication summary
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0
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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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2
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2
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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
|
|---|---|---|
| Raytheon Technologies Corporation | 332 |
2 |
| Royal Bank of Canada | 1839 |
1 |
| DORST Technologies GmbH & Co. KG | 37 |
1 |
| GKN Aerospace Services Limited | 129 |
1 |
| Hawkeyepedershaab Concrete Technologies, Inc. | 28 |
1 |
| L-3 Communications Cincinnati Electronics Corporation | 4 |
1 |
| Lancer Systems L.P. | 12 |
1 |
| PSI Global Ltd. | 18 |
1 |
| NexGen Pipes Pte. Ltd. | 3 |
1 |
| HC Properties Inc. | 14 |
1 |
| Other owners | 0 |