- All sections
- B - Performing operationstransporting
- B63H - Marine propulsion or steering
- B63H 25/14 - Steering gear power assistedSteering gear power driven, i.e. using steering engine
Patent holdings for IPC class B63H 25/14
Total number of patents in this class: 15
10-year publication summary
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1
|
3
|
1
|
1
|
1
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0
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2
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0
|
1
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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
|
|---|---|---|
| Yamaha Motor Co., Ltd. | 2854 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9172 |
2 |
| Northrop Grumman Systems Corporation | 2911 |
1 |
| ZF Friedrichshafen AG | 7270 |
1 |
| BRP US Inc. | 302 |
1 |
| Canada Metal (Pacific) Limited | 6 |
1 |
| MarineTech Products, Inc. | 2 |
1 |
| Palmarix Ltd. | 1 |
1 |
| Twin Disc, Inc. | 98 |
1 |
| Guangdong ePropulsion Technology Limited | 129 |
1 |
| Shenzhen Yunzhou Innovation Technology Company Ltd. | 2 |
1 |
| Westlake University | 200 |
1 |
| Other owners | 0 |