- All sections
- B - Performing operationstransporting
- B63H - Marine propulsion or steering
- B63H 3/04 - Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary the control element being reciprocatable
Patent holdings for IPC class B63H 3/04
Total number of patents in this class: 19
10-year publication summary
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2
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0
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0
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0
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1
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1
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2
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1
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1
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Berg Propulsion Technology AB | 5 |
3 |
| BRP US Inc. | 302 |
2 |
| Samsung Heavy Ind. Co., Ltd. | 246 |
2 |
| Sikorsky Aircraft Corporation | 1060 |
2 |
| Teignbridge Propellers International Limited | 3 |
2 |
| Velettrica S.r.l. | 4 |
2 |
| Stormfageln AB | 2 |
1 |
| Servoprop Oy | 1 |
1 |
| Volvo Penta Corporation | 202 |
1 |
| Siemens Energy Global GmbH & Co. KG | 3470 |
1 |
| Ship Motion Group B.V. | 1 |
1 |
| Ewol S.r.l. | 1 |
1 |
| Other owners | 0 |