Patent No. EP1971362 (titled "Exendin For Treating Diabetes And Reducing Body Weight") was filed by Amylin Pharmaceuticals on Aug 18, 2006. The application was issued on Dec 3, 2014.

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 |
|---|---|---|
| COOLEY | Sep 3, 2015 | MEWBURN ELLIS |
| GENERICS UK TRADING MYLAN | Sep 3, 2015 | ELKINGTON AND FIFE |
| TEVA PHARMACEUTICAL INDUSTRIES LTD | Sep 3, 2015 | LEDERER & KELLER PATENTANWALTE PARTNERSCHAFT MBB |
| GLAXO GROUP | Sep 2, 2015 | WILSON |
| PENTAFARMA | Sep 2, 2015 | WEIST |
| PHARMATHEN | Aug 17, 2015 | APPLEYARD LEES |
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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