Patent No. EP2287192 (titled "Methods For Preventing And Treating Cancer Metastasis And Bone Loss Associated With Cancer Metastasis") was filed by Novartis Vaccines And Diagnostics on Nov 17, 2003. The application was issued on Aug 26, 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 |
|---|---|---|
| BRISTOL MYERS SQUIBB | May 25, 2016 | REITSTOTTER KINZEBACH |
| F HOFFMANN LA ROCHE | May 25, 2016 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
| FIVE PRIME THERAPEUTICS | May 25, 2016 | DENISON |
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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