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EP2552955

CHUGAI SEIYAKU KABUSHIKI KAISHA
Application Number
EP11714860A
Filing Date
Mar 30, 2011
Status
Revoked
Sep 23, 2022
Grant Date
May 3, 2017
External Links
Slate, Register, Google Patents
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Biblio Summary

The patent EP2552955B1 was granted to Chugai Seiyaku Kabushiki Kaisha on May 3, 2017 following the initial filing on Mar 30, 2011 under the application number EP11714860A . The current legal status of the patent is Revoked.

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Patent Oppositions filed by Competitors

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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SHIRE HUMAN GENETIC THERAPIESFeb 5, 2018ADMISSIBLE
TILLOTTS PHARMAFeb 5, 2018ADMISSIBLE
ABLYNXFeb 2, 2018ADMISSIBLE
GLAXO GROUPFeb 2, 2018ADMISSIBLE
MURPHYFeb 2, 2018ADMISSIBLE
ALEXION PHARMACEUTICALSFeb 2, 2018WITHDRAWN

Dossier Documents of the Patent

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