Patent No. EP4189048 (titled "Use Of Copolymers Having A Specific Molar Mass Distribution For Lowering The Cold Filter Plugging Point Of Fuels") was filed by Centre National DE LA Recherche Scientifique Cnrs on Jul 8, 2021. The application was issued on Sep 4, 2024.

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.
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.
Date
Description
Get instant alerts for new documents