Patent No. EP2279782 (titled "Filter Cartridge And Method For Manufacturing Filter Cartridge") was filed by EMD Millipore on Nov 17, 2005. The application was issued on Aug 13, 2014.

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 |
|---|---|---|
| SARTORIUS STEDIM BIOTECH | May 13, 2015 | MULLER BORE & PARTNER PATENTANWALTE PARTG 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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