Patent No. EP3214095 (titled "Compositions And Methods For Modulating Immune Responses") was filed by Zymogenetics on May 12, 2006. The application was issued on Dec 11, 2019.

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 |
|---|---|---|
| F HOFFMANN LA ROCHE | Sep 11, 2020 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
| MERCK | Sep 11, 2020 | HOYNG ROKH MONEGIER |
| MEREO BIOPHARMA GROUP | Sep 10, 2020 | HOFFMANN EITLE |
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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