- All sections
- B - Performing operationstransporting
- B63H - Marine propulsion or steering
- B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
Patent holdings for IPC class B63H 5/16
Total number of patents in this class: 168
10-year publication summary
|
20
|
10
|
21
|
15
|
12
|
9
|
12
|
10
|
13
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8846 |
13 |
| becker marine systems GmbH & Co. KG | 48 |
12 |
| BAE SYSTEMS plc | 2363 |
7 |
| Biofouling Technologies, Inc. | 20 |
6 |
| Korea Institute of Ocean Science & Technology | 423 |
6 |
| Japan Marine United Corporation | 74 |
4 |
| National Maritime Research Institute | 15 |
4 |
| Twin Disc, Inc. | 95 |
4 |
| Weedoo Greenboat Inc. | 11 |
4 |
| Samsung Heavy Ind. Co., Ltd. | 239 |
3 |
| Sport Marine Technologies, Inc. | 16 |
3 |
| Lr-shipdesign AG | 7 |
3 |
| Koninklijke Philips N.V. | 25012 |
2 |
| Bombardier Recreational Products Inc. | 1403 |
2 |
| Brooks Stevens Design Associates, Inc. | 3 |
2 |
| BRP US Inc. | 301 |
2 |
| Nippon Yusen Kabushiki Kaisha | 166 |
2 |
| San Marco S.N.C. di Carli Maurizio & C. | 2 |
2 |
| Solas Science & Engineering Co., Ltd. | 63 |
2 |
| Twin Troller Boats, Inc. | 2 |
2 |
| Other owners | 83 |