IP Verse

Cellulose Acetate And Cellulose Acetate Composition

Patent No. EP3862388 (titled "Cellulose Acetate And Cellulose Acetate Composition") was filed by Daicel on Dec 9, 2019. The application was issued on Jul 26, 2023.

Patent Summary

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Patent Family

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.

CompanyOpposition DateRepresentative
ACETATEApr 26, 2024SIMMONS & SIMMONS MUNICH
CERDIAApr 26, 2024MEISSNER BOLTE
CERDIAApr 26, 2024MEISSNER BOLTE PARTNERSCHAFT MBB

Dossier Documents

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EP3862388

DAICEL
Application Number
EP19888249A
Filing Date
Dec 9, 2019
Status
Granted And Under Opposition
Jun 23, 2023
Publication Date
Jul 26, 2023
External Links
Slate, EP3862388B1, Google Patents