- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F03D - Wind motors
- F03D 9/12 - Combinations of wind motors with apparatus storing energy storing kinetic energy, e.g. using flywheels
Patent holdings for IPC class F03D 9/12
Total number of patents in this class: 31
10-year publication summary
|
5
|
7
|
11
|
7
|
7
|
6
|
6
|
4
|
3
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Star Sailor Energy, Inc. | 5 |
3 |
| Wobben Properties GmbH | 1220 |
3 |
| Douglas P. Arduini | 3 |
2 |
| Sea Twirl AB | 3 |
2 |
| Amber Kinetics, Inc. | 45 |
1 |
| Energiestro | 9 |
1 |
| Orbis Wheels, Inc. | 10 |
1 |
| South University of Science and Technology of China | 124 |
1 |
| Stargreen Power Corporation | 2 |
1 |
| Suzlon Energy Limited | 15 |
1 |
| University of Ulsan Foundation for Industry Cooperation | 738 |
1 |
| University of Virginia Patent Foundation | 1626 |
1 |
| Kelso Energy Ltd. | 6 |
1 |
| Siemens Gamesa Renewable Energy A/S | 1928 |
1 |
| Niore IP, s.r.o. | 2 |
1 |
| Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | 334 |
1 |
| SkySails Power GmbH | 8 |
1 |
| Shou-Hsun Lee | 1 |
1 |
| 9286-5369 Québec Inc. | 1 |
1 |
| Future Project Energy S.r.l. | 1 |
1 |
| Other owners | 5 |