- All sections
- B - Performing operationstransporting
- B63B - Ships or other waterborne vesselsequipment for shipping
- B63B 3/44 - Bilge keels
Patent holdings for IPC class B63B 3/44
Total number of patents in this class: 9
10-year publication summary
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0
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3
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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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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The United States of America as represented by the Secretary of the Navy | 2857 |
2 |
| Safe Boats International L.L.C. | 9 |
2 |
| Aloys Wobben | 16 |
1 |
| MagnaSail, LLC | 2 |
1 |
| Mitsui E&S Shipbuilding Co., Ltd. | 44 |
1 |
| LEE, Su Mi | 1 |
1 |
| Priserve Engineering Inc | 2 |
1 |
| Other owners | 0 |