Use Of Polyols To Obtain Stable Polymorphous Forms Of Rifaximin

Patent No. EP2059232 (titled "Use Of Polyols To Obtain Stable Polymorphous Forms Of Rifaximin") was filed by Alfasigma on Jul 31, 2007. The application was issued on Apr 19, 2017.

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Patent Family

Patent Oppositions (3)

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.

CompanyOpposition DateRepresentative
PENTAFARMAJan 19, 2018PATENTREE
SANDOZJan 19, 2018TER MEER STEINMEISTER & PARTNER
POLPHARMAJan 18, 2018ISARPATENT

Dossier Documents

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EP2059232

ALFASIGMA
Application Number
EP07804680A
Filing Date
Jul 31, 2007
Status
Revoked
Feb 7, 2025
Publication Date
Apr 19, 2017