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IP Verse

Highly Branched Sulfonates For Drive-Line Applications - EP2137284

The patent EP2137284 was granted to The Lubrizol on Jun 14, 2023. The application was filed on Apr 1, 2008 under application number EP08744849A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP2137284

THE LUBRIZOL
Application Number
EP08744849A
Filing Date
Apr 1, 2008
Status
Patent Maintained As Amended
May 12, 2023
Publication Date
Jun 14, 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 CHEMICALJun 19, 2020J A KEMP -

Patent Citations (12) New

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

Citation PhasePublication Number
EXAMINATIONUS2004005988
INTERNATIONAL-SEARCH-REPORTEP1384769
INTERNATIONAL-SEARCH-REPORTEP1845149
INTERNATIONAL-SEARCH-REPORTUS4259193
INTERNATIONAL-SEARCH-REPORTWO9616146
OPPOSITIONGB1146987
OPPOSITIONGB690046
OPPOSITIONUS2001034307
OPPOSITIONUS2004005988
OPPOSITIONUS4259193
OPPOSITIONUS5344967
OPPOSITIONWO2007120352

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

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