Patent No. EP2699248 (titled "Method For Preparing A Depleted Plasma Material Consisting Of One Or More Thrombogenic Factors") was filed by Laboratoire Franais DU Fractionnement ET DES Biotechnologies on Apr 19, 2012. 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 |
|---|---|---|
| BIOTEST | Nov 8, 2017 | REITSTOTTER KINZEBACH |
| STRAWMAN | Nov 8, 2017 | ELEND |
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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