- All sections
- B - Performing operationstransporting
- B63H - Marine propulsion or steering
- B63H 1/18 - Propellers with means for diminishing cavitation, e.g. supercavitation
Patent holdings for IPC class B63H 1/18
Total number of patents in this class: 72
10-year publication summary
|
4
|
7
|
7
|
6
|
6
|
4
|
6
|
8
|
6
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brunswick Corporation | 1334 |
6 |
| BAE SYSTEMS plc | 2321 |
4 |
| Juliet Marine Systems, Inc. | 14 |
4 |
| Moth Co., Ltd. | 5 |
4 |
| Siemens AG | 24563 |
3 |
| ABB Oy | 162 |
2 |
| becker marine systems GmbH & Co. KG | 47 |
2 |
| Korea Institute of Ocean Science & Technology | 413 |
2 |
| Newsouth Innovations Pty Limited | 591 |
2 |
| Samsung Heavy Ind. Co., Ltd. | 239 |
2 |
| Sport Marine Technologies, Inc. | 17 |
2 |
| Oscar Propulsion Ltd. | 8 |
2 |
| VOLTA BOATS GmbH | 2 |
2 |
| Volvo Penta Corporation | 132 |
2 |
| Toyota Motor Corporation | 31311 |
1 |
| Yamaha Motor Co., Ltd. | 2805 |
1 |
| NTN Corporation | 4975 |
1 |
| Toyota Industries Corporation | 1088 |
1 |
| Purdue Research Foundation | 3557 |
1 |
| Cranfield University | 86 |
1 |
| Other owners | 27 |