- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F03D - Wind motors
- F03D 9/22 - Wind motors characterised by the driven apparatus the apparatus producing heat
Patent holdings for IPC class F03D 9/22
Total number of patents in this class: 26
10-year publication summary
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4
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6
|
7
|
3
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3
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3
|
4
|
1
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1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15015 |
5 |
| Wobben Properties GmbH | 1212 |
4 |
| Nippon Steel Corporation | 6031 |
2 |
| Siemens Gamesa Renewable Energy A/S | 1814 |
2 |
| Boundary Turbines Inc | 4 |
2 |
| Boundary Energy Inc. | 14 |
2 |
| H2O Turbines Ltd. | 2 |
2 |
| Toshiba Corporation | 12076 |
1 |
| ABB Schweiz AG | 6650 |
1 |
| China University of Mining and Technology | 1226 |
1 |
| Kyoto University | 2779 |
1 |
| North China Electric Power University | 167 |
1 |
| Ida Covertruck, S.L. | 6 |
1 |
| Advanced Energy Storage, LLC | 6 |
1 |
| Other owners | 0 |