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IP Verse

Process For Preparing A Polyether Polyol With A High Ethylene Oxide Content - EP3707192

The patent EP3707192 was granted to Shell Internationale Research Maatschappij on Jun 7, 2023. The application was filed on Nov 5, 2018 under application number EP18796941A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3707192

SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ
Application Number
EP18796941A
Filing Date
Nov 5, 2018
Status
Granted And Under Opposition
May 5, 2023
Publication Date
Jun 7, 2023
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

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
HERRERO & ASOCIADOSMar 7, 2024HERRERO & ASOCIADOSWITHDRAWN

Patent Citations (10) New

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

Citation PhasePublication Number
DESCRIPTIONUS2011230581
DESCRIPTIONWO0180994
INTERNATIONAL-SEARCH-REPORTUS2011230581
INTERNATIONAL-SEARCH-REPORTWO2016209677
INTERNATIONAL-SEARCH-REPORTWO2017032768
OPPOSITIONEP0876416
OPPOSITIONEP2547714
OPPOSITIONUS6617419
OPPOSITIONUS6884826
OPPOSITIONWO2017003749

Dossier Documents

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    Description

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