Patent No. EP3973178 (titled "A Method For Erecting A Wind Turbine Tower Using Stud Bolts") was filed by Vestas Wind Systems on May 19, 2020. The application was issued on Apr 24, 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 |
|---|---|---|
| GE WIND ENERGY | Jan 24, 2025 | ZIMMERMANN & PARTNER PATENTANWALTE MBB |
| SIEMENS GAMESA RENEWABLE ENERGY DEUTSCHLAND | Jan 23, 2025 | 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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