Patent No. EP3316360 (titled "Binder Composition For Secondary Battery Electrode, Slurry Composition For Secondary Battery Electrode, Electrode For Secondary Battery, And Secondary Battery") was filed by Zeon on Jun 28, 2016. The application was issued on Jul 3, 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.