IP Verse

Process For Producing Resin For Optical Material

Patent No. EP2842978 (titled "Process For Producing Resin For Optical Material") was filed by Mitsui Chemicals on Oct 9, 2007. The application was issued on Aug 5, 2015.

Patent Summary

Patent Family

Patent family tree
Statuses, jurisdictions and citation links are shared on request.

Patent Oppositions (2)

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 DateRepresentative
BRUNO BOCK CHEMISCHE FABRIK GMBH & CO. KGMay 4, 2016PATENTANWALTE OLBRICHT BUCHHOLD KEULERTZ
COVESTRO DEUTSCHLANDMar 9, 2016DAVEPON

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

EP2842978

MITSUI CHEMICALS
Application Number
EP14187734A
Filing Date
Oct 9, 2007
Status
Revoked
Sep 30, 2022
Publication Date
Aug 5, 2015
External Links
Slate, Register , Google Patents