Patent No. EP3701143 (titled "Rotor Blade Of A Wind Turbine And Method For Designing Same") was filed by Wobben Properties on Oct 23, 2018. The application was issued on Jul 13, 2022.

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 |
|---|---|---|
| VESTAS WIND SYSTEMS | Apr 12, 2023 | KENT |
| NORDEX ENERGY | Apr 12, 2023 | HAUCK |
| NORDEX ENERGY | Apr 12, 2023 | HAUCK PATENTANWALTSPARTNERSCHAFT MBB |
| SIEMENS GAMESA RENEWABLE ENERGY | Apr 11, 2023 | SGRE ASSOCIATION |
| SIEMENS GAMESA RENEWABLE ENERGY DEUTSCHLAND | Apr 11, 2023 | SGRE ASSOCIATION |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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