Patent No. EP3934878 (titled "Method And Facility For Producing Polylactide (Pla) From A Lactide Mixture By Means Of Polymerization") was filed by Koch on Feb 18, 2020. The application was issued on Jun 7, 2023.

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 |
|---|---|---|
| ENTEX RUST & MITSCHKE | Feb 22, 2024 | KAEWERT |
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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