The weekly litigation news digest is live. Subscribe now

IP Verse

Thermally Expandable Fire Resistant Resin Composition - EP3187549

The patent EP3187549 was granted to Sekisui Chemical on Apr 24, 2019. The application was filed on Aug 27, 2015 under application number EP15835504A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3187549

SEKISUI CHEMICAL
Application Number
EP15835504A
Filing Date
Aug 27, 2015
Status
Opposition Rejected
May 13, 2022
Publication Date
Apr 24, 2019
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
RUDOLF HENSELJan 20, 2020WACHINGERADMISSIBLE

Patent Citations (9) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTJP2006348228
INTERNATIONAL-SEARCH-REPORTJP2007326908
INTERNATIONAL-SEARCH-REPORTJP2009197115
INTERNATIONAL-SEARCH-REPORTJP2013136939
INTERNATIONAL-SEARCH-REPORTWO2013080563
OTHERJP2009197115
OTHERUS2013045358
SEARCHEP0814121
SEARCHUS2013045358

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