Patent No. EP2852350 (titled "Retention Insert And Connection Device For Dental Applications") was filed by Bchler on May 17, 2013. The application was issued on Sep 20, 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 |
|---|---|---|
| NOBEL BIOCARE SERVICES | Oct 13, 2016 | HOFFMANN EITLE |
| CENDRES METAUX | Jul 8, 2016 | FREI PATENT ATTORNEYS |
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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