Patent No. EP3337478 (titled "Methods For Treating Metastatic Pancreatic Cancer Using Combination Therapies Comprising Liposomal Irinotecan And Oxaliplatin") was filed by Ipsen Biopharm on Aug 19, 2016. The application was issued on Aug 12, 2020.

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 |
|---|---|---|
| GENERICS UK | May 12, 2021 | ELKINGTON AND FIFE |
| SANDOZ | May 6, 2021 | KRAUS & LEDERER PARTGMBB |
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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