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Use Of Polyols To Obtain Stable Polymorphous Forms Of Rifaximin - EP2059232

The patent EP2059232 was granted to Alfasigma on Apr 19, 2017. The application was originally filed on Jul 31, 2007 under application number EP07804680A. The patent is currently recorded with a legal status of "Revoked".

EP2059232

ALFASIGMA
Application Number
EP07804680A
Filing Date
Jul 31, 2007
Status
Revoked
Feb 7, 2025
Publication Date
Apr 19, 2017
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

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 DateRepresentativeOpposition Status

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PENTAFARMAJan 19, 2018PATENTREEADMISSIBLE
SANDOZJan 19, 2018TER MEER STEINMEISTER & PARTNERADMISSIBLE
POLPHARMAJan 18, 2018ISARPATENTADMISSIBLE

Patent Citations (19) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTEP1676847
INTERNATIONAL-SEARCH-REPORTWO2006094737
OPPOSITIONEP0155421
OPPOSITIONEP0547294
OPPOSITIONEP0616808
OPPOSITIONEP1557421
OPPOSITIONEP1676847
OPPOSITIONEP1874273
OPPOSITIONEP2059232
OPPOSITIONGB2079270
OPPOSITIONITMI20061692
OPPOSITIONUS2002107200
OPPOSITIONUS2005101598
OPPOSITIONUS2005272754
OPPOSITIONWO2005000123
OPPOSITIONWO2005044823
OPPOSITIONWO2006008512
OPPOSITIONWO2006094737
OPPOSITIONWO2008029208

Dossier Documents

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.

  • Date

    Description

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