Patent No. EP3806664 (titled "Edible Confectionery Coatings Including Calcium Carbonate") was filed by WM Wrigley JR on Jun 13, 2019. The application was issued on May 22, 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 |
|---|---|---|
| BOTTI & FERRARI | Feb 20, 2025 | BOTTI & FERRARI |
| BOTTI & FERRARI | Feb 20, 2025 | BOTTI & FERRARI |
| SCHAEFER KALK | Feb 20, 2025 | BLUMBACH ZINNGREBE PATENTANWALTE PARTG MBB |
| SCHAEFER KALK | Feb 20, 2025 | MAI BESIER |
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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