Patent No. EP1807032 (titled "Multi-Component Dressing For Wound Treatment On The Human Or Animal Body With Application Of Reduced Pressure") was filed by BSN Medical on Nov 2, 2005. The application was issued on Jul 5, 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 |
|---|---|---|
| ARIAS SANZ | Apr 5, 2018 | WALLINGER RICKER SCHLOTTER TOSTMANN |
| FRANKE & PARTNER PATENT UND RECHTSANWALTSKANZLEI | Apr 5, 2018 | SIMMONS & SIMMONS |
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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