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IP Verse

Storage Stable Composition Comprising Rifaximin Alpha - EP3536311

The patent EP3536311 was granted to Sandoz on Dec 22, 2021. The application was originally filed on Mar 22, 2017 under application number EP19170192A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3536311

SANDOZ
Application Number
EP19170192A
Filing Date
Mar 22, 2017
Status
Granted And Under Opposition
Nov 19, 2021
Publication Date
Dec 22, 2021
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions (2)

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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ALFASIGMASep 22, 2022CARPMAELS & RANSFORDADMISSIBLE
ALFASIGMASep 22, 2022KRAUS & LEDERER PARTGMBBADMISSIBLE

Patent Citations (8) New

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

Citation PhasePublication Number
DESCRIPTIONEP1557421
DESCRIPTIONEP1698630
OPPOSITIONEP1557421
OPPOSITIONWO2006094737
OPPOSITIONWO2011107970
SEARCHUS2008262012
SEARCHUS9018225
SEARCHWO2014091432

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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