Use Of Lubricant Compositions For Direct Injection Engines

Patent No. EP4194530 (titled "Use Of Lubricant Compositions For Direct Injection Engines") was filed by The Lubrizol on Mar 22, 2016. The application was issued on Jan 15, 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 CHEMICALSep 11, 2025J A KEMP
INFINEUMSep 11, 2025EISENFUHR SPEISER

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.

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EP4194530

THE LUBRIZOL
Application Number
EP22206756A
Filing Date
Mar 22, 2016
Status
Granted And Under Opposition
Nov 8, 2024
Publication Date
Jan 15, 2025