Lubricant Composition For Gasoline Engines And Method For Producing Same

Patent No. EP3275978 (titled "Lubricant Composition For Gasoline Engines And Method For Producing Same") was filed by Idemitsu Kosan on Mar 24, 2016. The application was issued on May 8, 2024.

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 DateRepresentative
AFTON CHEMICALFeb 7, 2025J A KEMP

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

EP3275978

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