- All sections
- B - Performing operationstransporting
- B63H - Marine propulsion or steering
- B63H 21/14 - Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
Patent holdings for IPC class B63H 21/14
Total number of patents in this class: 331
10-year publication summary
|
22
|
33
|
47
|
30
|
14
|
24
|
30
|
25
|
20
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yamaha Motor Co., Ltd. | 2815 |
29 |
| Brunswick Corporation | 1366 |
25 |
| Mitsubishi Heavy Industries, Ltd. | 8735 |
23 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3035 |
23 |
| Falcon Power, LLC | 30 |
13 |
| Daewoo Shipbuilding & Marine Engineering Co., Ltd. | 233 |
11 |
| Mitsubishi Shipbuilding Co., Ltd. | 166 |
11 |
| Yanmar Power Technology Co., Ltd. | 580 |
10 |
| Hanwha Ocean Co., Ltd. | 124 |
8 |
| Caterpillar Inc. | 9558 |
5 |
| Nippon Yusen Kabushiki Kaisha | 159 |
5 |
| Yanmar Co., Ltd. | 1404 |
5 |
| Platinum Marine Inc. | 7 |
5 |
| Mitsui Engineering & Shipbuilding Co., Ltd. | 318 |
4 |
| Neander Motors AG | 20 |
4 |
| Wartsila Finland Oy | 741 |
4 |
| Volvo Penta Corporation | 141 |
4 |
| Honda Motor Co., Ltd. | 25301 |
3 |
| Siemens AG | 24461 |
3 |
| The Boeing Company | 20057 |
3 |
| Other owners | 133 |