- All sections
- B - Performing operations; transporting
- B63H - Marine propulsion or steering
- B63H 25/30 - Steering engines of fluid type hydraulic
Patent holdings for IPC class B63H 25/30
Total number of patents in this class: 48
10-year publication summary
|
6
|
2
|
5
|
2
|
4
|
5
|
4
|
2
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
7 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
5 |
| Marine Canada Acquisition Inc. | 117 |
4 |
| ABB Oy | 178 |
2 |
| Japan Hamworthy & Co., Ltd. | 8 |
2 |
| MasterCraft Boat Company, LLC | 177 |
2 |
| Twin Disc, Inc. | 97 |
2 |
| Ultraflex S.p.A. | 43 |
2 |
| Dai-Ichi Electric Co., Ltd. | 5 |
1 |
| DCNS | 97 |
1 |
| Mitsui Engineering & Shipbuilding Co., Ltd. | 331 |
1 |
| Mitsui O.S.K. Lines, Ltd. | 42 |
1 |
| National Institute of Maritime, Port and Aviation Technology | 32 |
1 |
| NHK Spring Co., Ltd. | 1657 |
1 |
| Parker-Hannifin Corporation | 999 |
1 |
| Rolls-Royce Marine AS | 71 |
1 |
| Steering Solutions IP Holding Corporation | 847 |
1 |
| Suzuki Motor Corporation | 1266 |
1 |
| ThyssenKrupp Marine Systems GmbH | 257 |
1 |
| Yanmar Co., Ltd. | 1479 |
1 |
| Other owners | 10 |