The weekly litigation news digest is live. Subscribe now

IP Verse

Lubricating Oil Compositions Comprising A Biodiesel Fuel And An Antioxidant - EP2055762

The patent EP2055762 was granted to Chevron Oronite on Apr 28, 2021. The application was filed on Mar 26, 2008 under application number EP08251088A. The patent is currently recorded with a legal status of "Revoked".

EP2055762

CHEVRON ORONITE
Application Number
EP08251088A
Filing Date
Mar 26, 2008
Status
Revoked
Jul 24, 2025
Publication Date
Apr 28, 2021
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
AFTON CHEMICALJan 26, 2022J A KEMP -

Patent Citations (16) New

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

Citation PhasePublication Number
DESCRIPTIONEP0147240
DESCRIPTIONEP0482253
DESCRIPTIONEP0557561
DESCRIPTIONEP0613938
DESCRIPTIONGB960493
DESCRIPTIONWO9842808
EXAMINATIONEP2141220
OTHEREP1167497
OTHEREP2055761
OTHEREP2154231
OTHERWO03080771
OTHERWO2007028947
SEARCHEP1167497
SEARCHWO2009013275
SEARCHWO2009050984
SEARCHWO2009054322

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