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IP Verse

Use Of Ester Base Stocks To Improve Viscosity Index And Efficiency In Driveline And Industrial Gear Lubricating Fluids - EP4069808

The patent EP4069808 was granted to The Lubrizol on Aug 23, 2023. The application was filed on Oct 1, 2020 under application number EP20793521A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4069808

THE LUBRIZOL
Application Number
EP20793521A
Filing Date
Oct 1, 2020
Status
Granted And Under Opposition
Jul 21, 2023
Publication Date
Aug 23, 2023
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 CHEMICALMay 22, 2024J A KEMPADMISSIBLE

Patent Citations (27) New

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

Citation PhasePublication Number
DESCRIPTIONJP2009023385
DESCRIPTIONUS10227541
DESCRIPTIONUS2018112148
DESCRIPTIONUS4670169
DESCRIPTIONUS4770807
DESCRIPTIONUS4876374
DESCRIPTIONUS9540587
DESCRIPTIONUS9976099
DESCRIPTIONWO2008094759
INTERNATIONAL-SEARCH-REPORTJP2009203385
INTERNATIONAL-SEARCH-REPORTUS2020032160
INTERNATIONAL-SEARCH-REPORTUS9540587
INTERNATIONAL-SEARCH-REPORTWO2018190431
OPPOSITIONUS2003207775
OPPOSITIONUS2006178279
OPPOSITIONUS2006223718
OPPOSITIONUS2008248983
OPPOSITIONUS2010105589
OPPOSITIONUS2011039740
OPPOSITIONUS2014274848
OPPOSITIONUS2015051125
OPPOSITIONUS2017073609
OPPOSITIONUS2017183595
OPPOSITIONUS2017183597
OPPOSITIONUS2020032160
OPPOSITIONUS9540587
OPPOSITIONWO2018190431

Dossier Documents

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    Description

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