Patent No. EP2010219 (titled "Novel Formulations Which Stabilize And Inhibit Precipitation Of Immunogenic Compositions") was filed by Wyeth on Apr 19, 2007. The application was issued on Oct 28, 2015.

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 |
|---|---|---|
| MAIWALD PATENTANWALTS | Jul 28, 2016 | LASAR |
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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