IP Verse

Polyarylene Ether Sulfone

Patent No. EP3850033 (titled "Polyarylene Ether Sulfone") was filed by Basf on Sep 6, 2019. The application was issued on May 17, 2023.

Patent Summary

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Patent Family

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
SOLVAY SPECIALTY POLYMERS USAFeb 16, 2024VIOLA
SYENSQO SPECIALTY POLYMERS USAFeb 16, 2024VIOLA

Dossier Documents

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EP3850033

BASF
Application Number
EP19797539A
Filing Date
Sep 6, 2019
Status
Granted And Under Opposition
Apr 14, 2023
Publication Date
May 17, 2023
External Links
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