- All sections
- B - Performing operations; transporting
- B63H - Marine propulsion or steering
- B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elements; Means 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: 159
10-year publication summary
21
|
20
|
12
|
22
|
15
|
15
|
12
|
17
|
11
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Heavy Industries, Ltd. | 8217 |
13 |
becker marine systems GmbH & Co. KG | 47 |
12 |
BAE SYSTEMS plc | 2215 |
7 |
Korea Institute of Ocean Science & Technology | 353 |
6 |
Japan Marine United Corporation | 68 |
4 |
National Maritime Research Institute | 16 |
4 |
Twin Disc, Inc. | 97 |
4 |
Samsung Heavy Ind. Co., Ltd. | 240 |
3 |
Sport Marine Technologies, Inc. | 18 |
3 |
Weedoo Greenboat Inc. | 7 |
3 |
Lr-shipdesign AG | 7 |
3 |
Koninklijke Philips N.V. | 22975 |
2 |
Bombardier Recreational Products Inc. | 1262 |
2 |
Brooks Stevens Design Associates, Inc. | 3 |
2 |
BRP US Inc. | 287 |
2 |
San Marco S.N.C. di Carli Maurizio & C. | 2 |
2 |
Solas Science & Engineering Co., Ltd. | 64 |
2 |
Twin Troller Boats, Inc. | 2 |
2 |
Wartsila Finland Oy | 740 |
2 |
Nicholas Buck-Niehaus | 2 |
2 |
Other owners | 79 |