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Preparation Containing Tetracyclic Compound At High Dose

Patent No. EP3135287 (titled "Preparation Containing Tetracyclic Compound At High Dose") was filed by Chugai Seiyaku Kabushiki Kaisha on Apr 24, 2015. The application was issued on Nov 20, 2024.

Patent Summary

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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
ELKINGTON AND FIFEAug 20, 2025ELKINGTON AND FIFE
MANSKEAug 20, 2025WISCHMEYER
TEVA PHARMACEUTICALSAug 19, 2025KRAUS & LEDERER PARTGMBB

Dossier Documents

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EP3135287

CHUGAI SEIYAKU KABUSHIKI KAISHA
Application Number
EP15783124A
Filing Date
Apr 24, 2015
Status
Granted And Under Opposition
Oct 18, 2024
Publication Date
Nov 20, 2024
External Links
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