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IP Verse

Process For Preparing A Solution Of Lignin In An Aqueous Medium - EP3887474

The patent EP3887474 was granted to Stora Enso OYJ on Oct 18, 2023. The application was filed on Nov 26, 2019 under application number EP19888402A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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
Slate, Register, Google Patents

Patent Summary

Patent Family

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 DateRepresentativeOpposition Status
TRESPAJul 9, 2024ALGEMEEN OCTROOI EN MERKENBUREAUADMISSIBLE
UPM KYMMENEJul 8, 2024HOFFMANN EITLEADMISSIBLE

Patent Citations (19) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTCN101492522
INTERNATIONAL-SEARCH-REPORTCN101942068
INTERNATIONAL-SEARCH-REPORTCN102061141
INTERNATIONAL-SEARCH-REPORTCN103555237
INTERNATIONAL-SEARCH-REPORTCN104087219
INTERNATIONAL-SEARCH-REPORTWO2015114211
INTERNATIONAL-SEARCH-REPORTWO9424192
OPPOSITIONCN101492522
OPPOSITIONCN103497295
OPPOSITIONCN104087219
OPPOSITIONCN108587538
OPPOSITIONCN108625224
OPPOSITIONUS5866642
OPPOSITIONWO2013144454
SEARCHCN101492522
SEARCHCN102848443B
SEARCHCN102848443
SEARCHCN104087219
SEARCHEP3074410

Dossier Documents

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