Patent No. EP2350096 (titled "Methods Of Treating Hepatic Encephalopathy") was filed by Salix Pharmaceuticals on Oct 2, 2009. The application was issued on Dec 11, 2019.

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 |
|---|---|---|
| ALFRED E TIEFENBACHER | Sep 11, 2020 | HAMM & WITTKOPP |
| HOLLATZ | Sep 11, 2020 | TER MEER STEINMEISTER & PARTNER |
| STADA ARZNEIMITTEL | Sep 11, 2020 | HAMM & WITTKOPP |
| ACCORD HEALTHCARE | Sep 9, 2020 | BRAND MURRAY FULLER |
| TEVA PHARMACEUTICALS | Sep 9, 2020 | D YOUNG |
| AERA | Sep 7, 2020 | AERA |
| AERA | Sep 7, 2020 | BARDEHLE PAGENBERG SL |
| KRAUS & LEDERER PARTGMBB | Aug 31, 2020 | TER MEER STEINMEISTER & PARTNER |
| CMS CAMERON MCKENNA NABARRO OLSWANG | Aug 6, 2020 | CMS CAMERON MCKENNA NABARRO OLSWANG |
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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