IP Verse

Preparation Containing Tetracyclic Compound At High Dose - EP3135287

EP3135287

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

The patent EP3135287B1 was granted to Chugai Seiyaku Kabushiki Kaisha on Nov 20, 2024 following the initial filing on Apr 24, 2015 under the application number EP15783124A . The current legal status of the patent is Granted And Under Opposition.

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.

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ELKINGTON AND FIFEAug 20, 2025ADMISSIBLE
MANSKEAug 20, 2025ADMISSIBLE
TEVA PHARMACEUTICALSAug 19, 2025ADMISSIBLE

Dossier Documents

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.

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