- All sections
- B - Performing operations; transporting
- B63H - Marine propulsion or steering
- B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
Patent holdings for IPC class B63H 5/10
Total number of patents in this class: 143
10-year publication summary
|
14
|
17
|
13
|
15
|
10
|
9
|
7
|
14
|
9
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Heavy Ind. Co., Ltd. | 240 |
14 |
| AB Volvo Penta | 95 |
12 |
| Brunswick Corporation | 1271 |
12 |
| Volvo Penta Corporation | 91 |
6 |
| Siemens AG | 24990 |
5 |
| Japan Marine United Corporation | 68 |
5 |
| Juliet Marine Systems, Inc. | 14 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
4 |
| Thales SA | 2318 |
4 |
| ABB Oy | 178 |
4 |
| IHI Marine United Inc. | 14 |
3 |
| Safran Aircraft Engines | 5739 |
3 |
| Sharrow Engineering LLC | 42 |
3 |
| United Technologies Corporation | 2328 |
2 |
| ZF Friedrichshafen AG | 6820 |
2 |
| Michigan Marine Propulsion Systems, LLC | 2 |
2 |
| National University Corporation Tokyo University of Marine Science and Technology | 103 |
2 |
| Rolls-Royce Marine AS | 71 |
2 |
| Suzuki Motor Corporation | 1266 |
2 |
| Wartsila Finland Oy | 740 |
2 |
| Other owners | 49 |