Patent No. EP3476996 (titled "A Process For Preparing A Composite Textile Article Including A Biopolymer Layer Produced By Microoorganisms") was filed by Sanko Tekstil Isletmeleri SAN VE TIC on Oct 26, 2018. The application was issued on Oct 15, 2025.

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 |
|---|---|---|
| TROESCH SCHEIDEGGER WERNER | Jun 16, 2021 | SCHMID |
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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