- All sections
- B - Performing operationstransporting
- B63H - Marine propulsion or steering
- B63H 1/38 - Propulsive elements directly acting on water characterised solely by flotation properties, e.g. drums
Patent holdings for IPC class B63H 1/38
Total number of patents in this class: 7
10-year publication summary
|
2
|
0
|
3
|
1
|
1
|
0
|
1
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mattel, Inc. | 3045 |
1 |
| Massachusetts Institute of Technology | 10115 |
1 |
| The United States of America as represented by the Secretary of the Navy | 2783 |
1 |
| Anadarko Petroleum Corporation | 68 |
1 |
| Clear Path Energy, LLC | 5 |
1 |
| Gilles Nadeau | 1 |
1 |
| McDowall Affleck Pty Ltd | 1 |
1 |
| Other owners | 0 |