The weekly litigation news digest is live. Subscribe now

IP Verse

Lubricant Composition For Gasoline Engines And Method For Producing Same - EP3275978

The patent EP3275978 was granted to Idemitsu Kosan on May 8, 2024. The application was originally filed on Mar 24, 2016 under application number EP16768898A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3275978

IDEMITSU KOSAN
Application Number
EP16768898A
Filing Date
Mar 24, 2016
Status
Granted And Under Opposition
Apr 5, 2024
Publication Date
May 8, 2024
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

AFTON CHEMICALFeb 7, 2025J A KEMPADMISSIBLE

Patent Citations (28) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTJP2013544948
INTERNATIONAL-SEARCH-REPORTJP2014152301
INTERNATIONAL-SEARCH-REPORTJP2015163673
INTERNATIONAL-SEARCH-REPORTJPH01201399
INTERNATIONAL-SEARCH-REPORTJPH11315297
INTERNATIONAL-SEARCH-REPORTWO2015042337
INTERNATIONAL-SEARCH-REPORTWO2015042340
INTERNATIONAL-SEARCH-REPORTWO2015042341
OPPOSITIONEP0317354
OPPOSITIONEP3101095
OPPOSITIONEP3275978
OPPOSITIONJP2014152301
OPPOSITIONJP2015061746
OPPOSITIONUS2006116299
OPPOSITIONUS2009082233
OPPOSITIONWO2015042340
OPPOSITIONWO2015114920
OPPOSITIONWO2015171980
SEARCHEP0317354
SEARCHEP3101095
SEARCHEP3275980
SEARCHJP2014152301
SEARCHUS2006116299
SEARCHUS2009082233
SEARCHWO2015042337
SEARCHWO2015042340
SEARCHWO2015042341
SEARCHWO2016148708

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