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IP Verse

Method For Producing Polyolefin - EP3231817

The patent EP3231817 was granted to Sumitomo Chemical on Jun 5, 2019. The application was filed on Apr 10, 2017 under application number EP17165842A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3231817

SUMITOMO CHEMICAL
Application Number
EP17165842A
Filing Date
Apr 10, 2017
Status
Opposition Rejected
Feb 4, 2022
Publication Date
Jun 5, 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
WR GRACE & CONNMar 2, 2020KUTZENBERGER WOLFF & PARTNERADMISSIBLE

Patent Citations (19) New

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

Citation PhasePublication Number
DESCRIPTIONJP2004067850
DESCRIPTIONJPH02233708
DESCRIPTIONJPH04234409
DESCRIPTIONJPH061804
DESCRIPTIONJPH07216017
DESCRIPTIONJPH0762009
DESCRIPTIONJPS58201802
DESCRIPTIONJPS59126406
DESCRIPTIONJPS61218606
DESCRIPTIONJPS61287904
OPPOSITIONUS4405495
OPPOSITIONUS4482687
OPPOSITIONUS5047468
OPPOSITIONUS5126398
OPPOSITIONUS5149738
OPPOSITIONUS5548042
OPPOSITIONUS5616661
SEARCHEP2913345
SEARCHUS2012136127

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

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