Pharmaceutical Composition Containing 2-{4-[N-(5,6-Diphenylpyrazin-2-Yl)-N-Isopropylamino]Butyloxy}-N-(Methylsulfonyl)Acetamide

Patent No. EP4331607 (titled "Pharmaceutical Composition Containing 2-{4-[N-(5,6-Diphenylpyrazin-2-Yl)-N-Isopropylamino]Butyloxy}-N-(Methylsulfonyl)Acetamide") was filed by Nippon Shinyaku on Dec 1, 2016. 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
MANSKEJan 30, 2026MANSKE
PRZYLUSKIJan 30, 2026JD&P PATENT ATTORNEYS JOANNA DARGIEWICZ & PARTNERS

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EP4331607

NIPPON SHINYAKU
Application Number
EP23214939A
Filing Date
Dec 1, 2016
Status
Granted And Under Opposition
Mar 28, 2025
Publication Date
Apr 30, 2025