EP2530091

CHUGAI SEIYAKU KABUSHIKI KAISHA
Application Number
EP11736812A
Filing Date
Jan 28, 2011
Status
Revoked
Jun 26, 2024
Grant Date
Apr 4, 2018
External Links
Slate, Register, Google Patents
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Biblio Summary

The patent EP2530091B1 was granted on Apr 4, 2018 by Chugai Seiyaku Kabushiki Kaisha The patent is currently Revoked.

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 DateOpposition Status

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ABBVIEJan 4, 2019ADMISSIBLE
BOEHRINGER INGELHEIM RCV BOEHRINGER INGELHEIMJan 2, 2019ADMISSIBLE
SCHIWECK WEINZIERL KOCH PATENTANWALTE PARTNERSCHAFT MBBJan 2, 2019ADMISSIBLE

Patent citations in opposition refer to prior patents or publications that may challenge the validity of a contested patent. These references help assess whether the invention is truly novel or overlaps with existing intellectual property.

Citation PhasePatent NumberPatent LinkCited Text
OppositionWO2007111733
N/A
OppositionWO03025138
N/A
OppositionWO2005077090
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OppositionWO2007080597
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OppositionWO2009124931
N/A
OppositionWO2004030615
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OppositionWO2004053102
N/A
OppositionJPH11299493
N/A
OppositionWO0047602
N/A
OppositionWO0112664
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OppositionWO0175067
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OppositionWO0214358
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OppositionJP2008273973
N/A

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Dossier Documents of the Patent

The dossier documents provide a comprehensive record of the patent’s prosecution history, including filings, correspondence, and decisions made by patent offices. These documents are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination. It also includes the oppositions documents filed against the patent.