Patent No. EP1811868 (titled "Compositions And Methods Of Formulation For Enteral Formulas Containing Sialic Acid") was filed by Bristol Myers Squibb on Sep 30, 2005. The application was issued on Aug 15, 2018.

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 |
|---|---|---|
| NUTRICIA | May 15, 2019 | SCHRELL |
| ABBOTT | May 9, 2019 | BOULT WADE TENNANT |
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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