The weekly litigation news digest is live. Subscribe now

IP Verse

Peroxide Masterbatch - EP3545020

The patent EP3545020 was granted to Nouryon Chemicals on Jan 6, 2021. The application was filed on Nov 21, 2017 under application number EP17800873A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3545020

NOURYON CHEMICALS
Application Number
EP17800873A
Filing Date
Nov 21, 2017
Status
Opposition Rejected
Apr 4, 2025
Publication Date
Jan 6, 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
ARKEMA FRANCEOct 6, 2021ARKEMA PATENT -

Patent Citations (8) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTWO0104200
INTERNATIONAL-SEARCH-REPORTWO2012068703
OPPOSITIONJPH04296330
OPPOSITIONUS4421678
OPPOSITIONWO0104200
OPPOSITIONWO2012068703
OPPOSITIONWO2018095879
OPPOSITIONWO9854249

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