- All sections
- B - Performing operations; transporting
- 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: 67
10-year publication summary
8
|
4
|
7
|
7
|
6
|
6
|
3
|
6
|
8
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Brunswick Corporation | 1271 |
5 |
Juliet Marine Systems, Inc. | 14 |
4 |
Siemens AG | 24990 |
3 |
BAE SYSTEMS plc | 2215 |
3 |
ABB Oy | 178 |
2 |
becker marine systems GmbH & Co. KG | 47 |
2 |
Korea Institute of Ocean Science & Technology | 353 |
2 |
Newsouth Innovations Pty Limited | 567 |
2 |
Otto-von-Guericke-Universitat Magdeburg | 126 |
2 |
Samsung Heavy Ind. Co., Ltd. | 240 |
2 |
Sport Marine Technologies, Inc. | 18 |
2 |
VOLTA BOATS GmbH | 2 |
2 |
Moth Co., Ltd. | 3 |
2 |
Toyota Motor Corporation | 28582 |
1 |
Yamaha Motor Co., Ltd. | 2740 |
1 |
NTN Corporation | 5008 |
1 |
Toyota Industries Corporation | 1010 |
1 |
Purdue Research Foundation | 3277 |
1 |
Cranfield University | 90 |
1 |
Enviroprop Corporation | 2 |
1 |
Other owners | 27 |