The patent EP3889658 was granted to Hoya Lens Thailand on Aug 6, 2025. The application was originally filed on Mar 10, 2021 under application number EP21161697A. 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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