- All sections
- B - Performing operationstransporting
- B63H - Marine propulsion or steering
- B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
Patent holdings for IPC class B63H 21/17
Total number of patents in this class: 938
10-year publication summary
|
51
|
64
|
87
|
83
|
70
|
122
|
137
|
142
|
132
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yamaha Motor Co., Ltd. | 2799 |
40 |
| Brunswick Corporation | 1322 |
34 |
| Kai Concepts, LLC | 41 |
29 |
| Torqeedo GmbH | 89 |
27 |
| Siemens AG | 24577 |
22 |
| Volvo Penta Corporation | 128 |
20 |
| Mitsubishi Heavy Industries, Ltd. | 8569 |
18 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3025 |
18 |
| Taïga Motors Inc. | 137 |
14 |
| AB Volvo Penta | 84 |
12 |
| Guangdong ePropulsion Technology Limited | 102 |
12 |
| Honda Motor Co., Ltd. | 25093 |
11 |
| Johnson Outdoors Inc. | 210 |
11 |
| Suzuki Motor Corporation | 1299 |
10 |
| Fliteboard Pty Ltd | 42 |
10 |
| ABB Schweiz AG | 6778 |
8 |
| Yanmar Holdings Co., Ltd. | 468 |
8 |
| Rolls-Royce PLC | 3007 |
7 |
| Cayago GmbH | 23 |
7 |
| GE Energy Power Conversion Technology Ltd | 422 |
7 |
| Other owners | 613 |