Patent No. EP2887961 (titled "Nep Inhibitors For Treating Diseases Characterized By Atrial Enlargement Or Remodeling") was filed by Novartis on Aug 22, 2013. The application was issued on Apr 28, 2021.

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 |
|---|---|---|
| ALGEMEEN OCTROOI EN MERKENBUREAU | Jan 28, 2022 | ALGEMEEN OCTROOI EN MERKENBUREAU |
| GENERICS UK | Jan 28, 2022 | ELKINGTON AND FIFE |
| STADA ARZNEIMITTEL | Jan 28, 2022 | KERNEBECK |
| TEVA PHARMACEUTICALS | Jan 27, 2022 | D YOUNG |
| WUESTHOFF & WUESTHOFF PATENTANWALTE PARTG MBB | Jan 27, 2022 | SONNENHAUSER |
| ALFRED E TIEFENBACHER | Jan 26, 2022 | HAMM & WITTKOPP |
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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