IP Verse

Process For Preparing A Solution Of Lignin In An Aqueous Medium

Patent No. EP3887474 (titled "Process For Preparing A Solution Of Lignin In An Aqueous Medium") was filed by Stora Enso OYJ on Nov 26, 2019. The application was issued on Oct 18, 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
TRESPAJul 9, 2024ALGEMEEN OCTROOI EN MERKENBUREAU
UPM KYMMENEJul 8, 2024HOFFMANN EITLE

Dossier Documents

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EP3887474

STORA ENSO OYJ
Application Number
EP19888402A
Filing Date
Nov 26, 2019
Status
Granted And Under Opposition
Sep 15, 2023
Publication Date
Oct 18, 2023
External Links
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