IP Verse

Method For Preparing A Composition Comprising Highly Concentrated Antibodies By Ultrafiltration

Patent No. EP3235557 (titled "Method For Preparing A Composition Comprising Highly Concentrated Antibodies By Ultrafiltration") was filed by Chugai Seiyaku Kabushiki Kaisha on Aug 31, 2012. The application was issued on Apr 30, 2025.

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Patent Oppositions (2)

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
COHAUSZ & FLORACK PATENT UND RECHTSANWALTE PARTNERSCHAFTSGESELLSCHAFT MBBJan 30, 2026COHAUSZ & FLORACK
MAIWALDJan 28, 2026MAIWALD

Dossier Documents

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EP3235557

CHUGAI SEIYAKU KABUSHIKI KAISHA
Application Number
EP17170961A
Filing Date
Aug 31, 2012
Status
Granted And Under Opposition
Mar 28, 2025
Publication Date
Apr 30, 2025
External Links
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