- All sections
- B - Performing operationstransporting
- B63B - Ships or other waterborne vesselsequipment for shipping
- B63B 21/12 - Rat guards
Patent holdings for IPC class B63B 21/12
Total number of patents in this class: 5
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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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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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fjord, Inc. | 45 |
2 |
| National Oilwell Varco, L.P. | 1627 |
1 |
| PARRY, Simon | 1 |
1 |
| Barefoot International, LLC | 9 |
1 |
| Other owners | 0 |