Patent No. EP2893040 (titled "Systems And Methods To Detect Rare Mutations And Copy Number Variation") was filed by Guardant Health on Sep 4, 2013. The application was issued on Jan 2, 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 |
|---|---|---|
| GRUNECKER PATENT UND RECHTSANWALTE PARTG MBB | Oct 2, 2019 | - |
| STRAWMAN | Oct 2, 2019 | MEWBURN ELLIS |
| FOUNDATION MEDICINE | Oct 2, 2019 | POHLMAN |
| PERSONAL GENOME DIAGNOSTICS | Oct 2, 2019 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
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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