Patent No. EP2429557 (titled "Infant Feeding Formulas Comprising Probiotic Micro-Organisms") was filed by Nestec on May 11, 2010. 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 |
|---|---|---|
| NUTRICIA | Feb 6, 2017 | NEDERLANDSCH OCTROOIBUREAU |
| VALIO | Jan 30, 2017 | TAMPEREEN PATENTTITOIMISTO |
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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