- All sections
- B - Performing operations; transporting
- B63H - Marine propulsion or steering
- B63H 21/12 - Use of propulsion power plant or units on vessels the vessels being motor-driven
Patent holdings for IPC class B63H 21/12
Total number of patents in this class: 64
10-year publication summary
|
10
|
1
|
6
|
5
|
2
|
5
|
8
|
6
|
6
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daewoo Shipbuilding & Marine Engineering Co., Ltd. | 236 |
4 |
| Mitsui Engineering & Shipbuilding Co., Ltd. | 331 |
4 |
| Siemens AG | 24990 |
3 |
| Brunswick Corporation | 1271 |
3 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
3 |
| Yamaha Motor Co., Ltd. | 2740 |
2 |
| Advanced Fusion Systems LLC | 66 |
2 |
| Bombardier Recreational Products Inc. | 1262 |
2 |
| Enjet Co., Ltd. | 32 |
2 |
| MasterCraft Boat Company, LLC | 177 |
2 |
| Wartsila Finland Oy | 740 |
2 |
| Shanghai Waigaoqiao Shipbuilding Co., Ltd. | 3 |
2 |
| Applied Impact Robotics, Inc | 4 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Caterpillar Inc. | 8877 |
1 |
| Chevron U.S.A. Inc. | 3774 |
1 |
| Agency for Defense Development | 375 |
1 |
| Alluvionic Inc. | 8 |
1 |
| Douglas Marine Corporation | 2 |
1 |
| Feelfree US LLC | 3 |
1 |
| Other owners | 24 |