Lubricating Compositions And Methods Of Operating An Internal Combustion Engine

Patent No. EP4100497 (titled "Lubricating Compositions And Methods Of Operating An Internal Combustion Engine") was filed by The Lubrizol on Feb 4, 2021. The application was issued on Sep 3, 2025.

Patent Summary

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Patent Family

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
AFTON CHEMICALJun 2, 2026J A KEMP
INFINEUMJun 2, 2026EISENFUHR SPEISER

Dossier Documents

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EP4100497

THE LUBRIZOL
Filing Date
Feb 4, 2021
Status
Granted
Publication Date
Sep 3, 2025