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IP Verse

Polycyclic Carbamoylpyridone Derivative Having Hiv Integrase Inhibitory Activity - EP3284520

The patent EP3284520 was granted to Shionogi on Jun 5, 2019. The application was filed on Apr 28, 2006 under application number EP17195280A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3284520

SHIONOGI
Application Number
EP17195280A
Filing Date
Apr 28, 2006
Status
Opposition Rejected
Feb 11, 2022
Publication Date
Jun 5, 2019
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

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
GILEAD SCIENCESFeb 4, 2020CARPMAELS & RANSFORDADMISSIBLE

Patent Citations (17) New

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

Citation PhasePublication Number
DESCRIPTIONJP2003032772
DESCRIPTIONJPH02108668
DESCRIPTIONJPH02108683
DESCRIPTIONJPH0296506
DESCRIPTIONUS2004133029
DESCRIPTIONWO0212173
DESCRIPTIONWO03016275
DESCRIPTIONWO03035076
DESCRIPTIONWO2004004657
DESCRIPTIONWO2004024693
DESCRIPTIONWO2005016927
OPPOSITIONJP2005312076
OPPOSITIONWO2005016927
OPPOSITIONWO2005092099
SEARCHEP1544199
SEARCHUS2005054645
SEARCHWO2004058757

Dossier Documents

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    Description

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