Patent No. EP3911580 (titled "Recycling-Friendly Blister Packaging") was filed by Huhtamaki Flexible Packaging Germany on Jan 14, 2020. The application was issued on Apr 12, 2023.

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 |
|---|---|---|
| SONOCO | Jan 11, 2024 | HOFFMANN EITLE |
| TEKNI PLEX | Jan 11, 2024 | PAGE WHITE FARRER |
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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