- All sections
- B - Performing operations; transporting
- B63H - Marine propulsion or steering
- B63H 23/34 - Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
Patent holdings for IPC class B63H 23/34
Total number of patents in this class: 171
10-year publication summary
|
18
|
7
|
17
|
11
|
15
|
8
|
14
|
41
|
34
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yamaha Motor Co., Ltd. | 2740 |
38 |
| Brunswick Corporation | 1271 |
7 |
| Honda Motor Co., Ltd. | 24537 |
5 |
| ABB Oy | 178 |
5 |
| ZF Friedrichshafen AG | 6820 |
4 |
| Samsung Heavy Ind. Co., Ltd. | 240 |
4 |
| Rhodan Marine Systems of Florida, LLC | 18 |
4 |
| The United States of America as represented by the Secretary of the Navy | 2734 |
3 |
| BAE SYSTEMS plc | 2215 |
3 |
| Bright Spark Innovations GP Limited | 4 |
3 |
| Electric Torque Machines, Inc. | 47 |
3 |
| Volvo Penta Corporation | 91 |
3 |
| Taïga Motors Inc. | 126 |
3 |
| BRP US Inc. | 287 |
2 |
| Eagle Industry Co., Ltd. | 1062 |
2 |
| Idea'z LLC | 2 |
2 |
| MasterCraft Boat Company, LLC | 177 |
2 |
| Rolls-Royce Marine AS | 71 |
2 |
| Suzuki Motor Corporation | 1266 |
2 |
| SZ DJI Technology Co., Ltd | 6791 |
2 |
| Other owners | 72 |