Patent No. EP3296395 (titled "Multiple Antigen Binding Molecular Fusion, Pharmaceutical Composition, Method For Identifying Linear Epitope, And Method For Preparing Multiple Antigen Binding Molecular Fusion") was filed by Chugai Seiyaku Kabushiki Kaisha on May 13, 2016. The application was issued on Jun 19, 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.
| Company | Opposition Date | Representative |
|---|---|---|
| JAMES POOLE | Mar 25, 2022 | CARPMAELS & RANSFORD |
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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