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IP Verse

Continuous Ethylene Tetramerization Process - EP2935163

The patent EP2935163 was granted to Nova Chemicals on Apr 4, 2018. The application was filed on Dec 4, 2013 under application number EP13865468A. The patent is currently recorded with a legal status of "Revoked".

EP2935163

NOVA CHEMICALS
Application Number
EP13865468A
Filing Date
Dec 4, 2013
Status
Revoked
Oct 24, 2023
Publication Date
Apr 4, 2018
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
SASOL SOUTH AFRICAJan 4, 2019HOFFMANN EITLE -

Patent Citations (4) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTWO2007007272
INTERNATIONAL-SEARCH-REPORTWO2009006979
INTERNATIONAL-SEARCH-REPORTWO2013013300
OPPOSITIONWO2007007272

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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