IP Verse

Lubricant Composition - EP2154231

The patent EP2154231 was granted to Idemitsu Kosan on Feb 21, 2018. The application was originally filed on Mar 24, 2008 under application number EP08738771A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP2154231

IDEMITSU KOSAN
Application Number
EP08738771A
Filing Date
Mar 24, 2008
Status
Granted And Under Opposition
Jan 19, 2018
Publication Date
Feb 21, 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

Get instant alerts for new oppositions and patent status changes

INFINEUMNov 21, 2018HART -

Patent Citations (13) New

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

Citation PhasePublication Number
DESCRIPTIONJP2003252887
DESCRIPTIONJP2004002866
DESCRIPTIONJP3022438B
INTERNATIONAL-SEARCH-REPORTWO2005090532
INTERNATIONAL-SEARCH-REPORTWO2006065958
OPPOSITIONEP0663436
OPPOSITIONEP1736529
OPPOSITIONUS2002058593
OPPOSITIONUS2004242434
SEARCHEP1439217
SEARCHEP1736529
SEARCHJP2002275488
SEARCHWO9964543

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

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