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IP Verse

Method For Reducing The Aldehyde Emissions Of Polyurethane Foams - EP3512896

The patent EP3512896 was granted to Covestro on Jun 9, 2021. The application was originally filed on Sep 12, 2017 under application number EP17768422A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3512896

COVESTRO
Application Number
EP17768422A
Filing Date
Sep 12, 2017
Status
Granted And Under Opposition
May 11, 2021
Publication Date
Jun 9, 2021
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

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BASFMar 9, 2022ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBBADMISSIBLE
HUNTSMANMar 8, 2022HOFFMANN EITLEADMISSIBLE

Patent Citations (28) New

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

Citation PhasePublication Number
DESCRIPTIONDE1694142
DESCRIPTIONDE1694215
DESCRIPTIONDE1720768
DESCRIPTIONDE3103757
DESCRIPTIONEP0000389
DESCRIPTIONEP0007502
DESCRIPTIONEP0176013
DESCRIPTIONEP0355000
DESCRIPTIONGB2072204
DESCRIPTIONUS4070304
DESCRIPTIONUS4089835
DESCRIPTIONUS4260530
DESCRIPTIONUS4374209
INTERNATIONAL-SEARCH-REPORTEP0312927
INTERNATIONAL-SEARCH-REPORTEP0705872
INTERNATIONAL-SEARCH-REPORTUS6348514
OPPOSITIONCN104774306
OPPOSITIONDE19618786
OPPOSITIONEP1437372
OPPOSITIONJP2008115325
OPPOSITIONJPH08188637
OPPOSITIONJPH11302352
OPPOSITIONUS3772218
OPPOSITIONUS6348514
OPPOSITIONWO2006111492
OPPOSITIONWO2011084865
OPPOSITIONWO2011113792
OPPOSITIONWO2013116092

Dossier Documents

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    Description

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