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IP Verse

Lubricant Composition - EP2826846

The patent EP2826846 was granted to Idemitsu Kosan on Dec 5, 2018. The application was filed on Mar 12, 2013 under application number EP13760336A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP2826846

IDEMITSU KOSAN
Application Number
EP13760336A
Filing Date
Mar 12, 2013
Status
Opposition Rejected
Apr 2, 2022
Publication Date
Dec 5, 2018
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 CHEMICALSep 3, 2019J A KEMPADMISSIBLE

Patent Citations (19) New

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

Citation PhasePublication Number
DESCRIPTIONJP2001288488
DESCRIPTIONJP2009167337
DESCRIPTIONWO2011037054
INTERNATIONAL-SEARCH-REPORTJP2007238764
INTERNATIONAL-SEARCH-REPORTWO2011037054
INTERNATIONAL-SEARCH-REPORTWO2011062282
OPPOSITIONEP2246412
OPPOSITIONEP2481790
OPPOSITIONGB2360528
OPPOSITIONJP2000355695
OPPOSITIONUS2007293406
OPPOSITIONUS2010216676
OPPOSITIONUS4795583
OPPOSITIONUS6320088
OPPOSITIONWO03070863
OPPOSITIONWO9911743
SEARCHEP1918356
SEARCHJP2000355695
SEARCHUS2010216676

Dossier Documents

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    Description

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