The patent EP4181780 was granted to Biogen MA on Jul 16, 2025. The application was originally filed on Jul 20, 2021 under application number EP21762835A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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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