Patent No. EP3931443 (titled "Wind Turbine, Sensor Kit For A Wind Turbine, System Comprising A Wind Turbine And An Online-Based Memory And Server Service, And Method For Transmitting Data From A Wind Turbine To An Online-Based Memory And Server Service") was filed by Polytech Wind Power Technology Germany on Feb 20, 2020. The application was issued on Feb 28, 2024.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative |
|---|---|---|
| WEIDMULLER MONITORING SYSTEMS | Nov 28, 2024 | KLEINE |
| GE WIND ENERGY | Nov 27, 2024 | BARDEHLE PAGENBERG SL |
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