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IP Verse

Branched Alkyl Sulfate Gypsum Foamer - EP3310732

The patent EP3310732 was granted to Stepan on Mar 5, 2025. The application was filed on Jun 14, 2016 under application number EP16812216A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3310732

STEPAN
Application Number
EP16812216A
Filing Date
Jun 14, 2016
Status
Granted And Under Opposition
Jan 31, 2025
Publication Date
Mar 5, 2025
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
INNOSPECDec 4, 2025APPLEYARD LEESADMISSIBLE

Patent Citations (34) New

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

Citation PhasePublication Number
DESCRIPTIONEP0336749
DESCRIPTIONUS2008223258
DESCRIPTIONUS4156615
DESCRIPTIONUS5085929
DESCRIPTIONUS5116671
DESCRIPTIONUS5240639
DESCRIPTIONUS5643510
DESCRIPTIONUS5714001
DESCRIPTIONUS7033431
DESCRIPTIONUS7220373
DESCRIPTIONWO2014172469
INTERNATIONAL-SEARCH-REPORTUS2001016565
INTERNATIONAL-SEARCH-REPORTWO2014172469
OPPOSITIONDE20303420U
OPPOSITIONEP0992573
OPPOSITIONEP1903095
OPPOSITIONEP2198828
OPPOSITIONJP4566314B
OPPOSITIONJPS5788056
OPPOSITIONUS2001016565
OPPOSITIONUS2006079418
OPPOSITIONUS2012310004
OPPOSITIONUS4264457
OPPOSITIONUS5403516
OPPOSITIONUS7320956
OPPOSITIONUS8492465
OPPOSITIONWO0105923
OPPOSITIONWO2009090617
OPPOSITIONWO2014172469
OPPOSITIONWO9533024
SEARCHEP0336749
SEARCHUS2008223258
SEARCHUS5643510
SEARCHWO2014172469

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.

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    Description

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