Method For Producing Highly Dispersed Silicon Dioxide - EP3580173

The patent EP3580173 was granted to Wacker Chemie on Oct 20, 2021. The application was originally 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
Grant 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

Get instant alerts for new oppositions and patent status changes

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 NumberPublication Link
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

Non-Patent Literature (NPL) Citations (2) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
EXAMINATION- GUN'KO ET AL, "Morphology and surface properties of fumed silicas", JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS,INC, US, (20050915), vol. 289, no. 2, ISSN 0021-9797, pages 427 - 445, XP005031035-
OPPOSITION- Gun'ko, V.M. Mironyuk, I.F. Zarko, V.I. Voronin, E.F. Turov, V.V. Pakhlov, E.M. Goncharuk, E.V. Nychiporuk, Y.M. Vlasova, N.N. Gorbik, P.P. Mishchuk, O.A. Chuiko, A.A. Kulik, T.V. Palyanytsya, B.B. Pakhovchishin, S.V. Skubiszewska-Zieba, J. Janusz, W. Turov, A.V., "Morphology and surface properties of fumed silicas", Journal of Colloid and Interface Science, Academic Press,Inc., US, US , (20050915), vol. 289, no. 2, ISSN 0021-9797, pages 427 - 445, XP005031035-

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

Dossier Documents

The dossier documents provide a comprehensive record of the patent’s prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents