Patent No. EP1641810 (titled "Prediction Of Likelihood Of Cancer Recurrence") was filed by Genomic Health on Jun 17, 2004. The application was issued on Apr 19, 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 |
|---|---|---|
| MINTZ LEVIN COHN FERRIS GLOVSKY AND POPEO | Feb 13, 2015 | COOLEY UK |
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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