Patent No. EP2898329 (titled "Method Of Identifying Treatment Responsive Non-Small Cell Lung Cancer Using Anaplastic Lymphoma Kinase (Alk) As A Marker") was filed by Ventana Medical Systems on Mar 14, 2013. The application was issued on May 17, 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 |
|---|---|---|
| HOFFMANN EITLE | Feb 19, 2018 | - |
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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