Patent No. EP2308466 (titled "Aqueous Pharmaceutical Compositions Containing Borate-Polyol Complexes") was filed by Alcon Research on Mar 3, 2009. The application was issued on May 31, 2017.
Multi-dose ophthalmic pharmaceutical composition that exhibits desired buffering and desired anti-microbial activity. The composition includes two or more different polyols in conjunction with borate, a preservative or both.

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 |
|---|---|---|
| ALFRED E TIEFENBACHER | Feb 28, 2018 | GILL JENNINGS & EVERY |
| GENERICS UK TRADING MYLAN | Feb 28, 2018 | GILL JENNINGS & EVERY |
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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