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IP Verse

Method For Producing Highly Dispersed Silicon Dioxide - EP3580173

The patent EP3580173 was granted to Wacker Chemie on Oct 20, 2021. The application was filed on Jul 13, 2017 under application number EP17751618A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3580173

WACKER CHEMIE
Application Number
EP17751618A
Filing Date
Jul 13, 2017
Status
Opposition Rejected
Jul 11, 2025
Publication Date
Oct 20, 2021
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
EVONIK OPERATIONSMay 25, 2022EVONIK PATENT ASSOCIATIONADMISSIBLE

Patent Citations (21) New

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

Citation PhasePublication Number
DESCRIPTIONDE19605672
DESCRIPTIONDE2620737
DESCRIPTIONEP0790213
DESCRIPTIONEP1381265
DESCRIPTIONEP1681265
DESCRIPTIONEP1681266
DESCRIPTIONEP1686093
DESCRIPTIONEP1693343
INTERNATIONAL-SEARCH-REPORTDE102008054592
INTERNATIONAL-SEARCH-REPORTDE102011017587
INTERNATIONAL-SEARCH-REPORTDE60133416T
INTERNATIONAL-SEARCH-REPORTEP1693343
OPPOSITIONEP1681266
OPPOSITIONEP1686093
OPPOSITIONEP1693343
OPPOSITIONUS2002041963
OPPOSITIONUS2006154994
OPPOSITIONUS2006155042
OPPOSITIONUS2006155052
OPPOSITIONUS2010059704
OPPOSITIONWO2004048261

Dossier Documents

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  • Date

    Description

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