Patent No. EP1993360 (titled "Solid Forms Of N-[2,4-Bis(1,1-Dimethylethyl)-5-Hydroxyphenyl]-1,4-Dihydro-4-Oxoquinoline-3-Carboxamide") was filed by Vertex Pharmaceuticals on Dec 28, 2006. The application was issued on Feb 8, 2017.

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 |
|---|---|---|
| GEORG KALHAMMER/STEPHAN TEIPEL | Nov 3, 2017 | - |
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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