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IP Verse

Composition Based On Zirconium Oxide And Oxides Of Cerium, Lanthanum And Of Another Rare Earth, A Method For Preparing Same And Use Thereof As Catalyst - EP3009403

The patent EP3009403 was granted to Rhodia Operations on Apr 21, 2021. The application was filed on Jun 26, 2003 under application number EP15191869A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3009403

RHODIA OPERATIONS
Application Number
EP15191869A
Filing Date
Jun 26, 2003
Status
Granted And Under Opposition
Mar 19, 2021
Publication Date
Apr 21, 2021
External Links
Slate, Register, Google Patents

Patent Summary

A high-temperature stable catalyst composition comprising a solid solution of zirconium oxide and rare earth oxides, particularly cerium, lanthanum, and another rare earth, prepared by mixing a zirconium sol with a mixture of cerium, lanthanum, and rare earth compounds, precipitating the mixture with a basic compound, calcining the precipitate, and applying the resulting composition to a thermally inert support.

Patent Family

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 DateRepresentativeOpposition Status
HASEGAWAJan 21, 2022WINTERWITHDRAWN
NEO CHEMICALS & OXIDES EUROPEJun 2, 2021BIRD & BIRDADMISSIBLE

Patent Citations (21) New

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

Citation PhasePublication Number
EXAMINATIONUS6214306
EXAMINATIONWO03037506
OPPOSITIONEP1035074
OPPOSITIONEP1527018
OPPOSITIONFR2841547
OPPOSITIONJP2000319019
OPPOSITIONJPH11292539
OPPOSITIONUS5532198
OPPOSITIONUS5898014
OPPOSITIONUS6133194
OPPOSITIONUS6255242
OPPOSITIONWO2004085314
OTHEREP1052008
OTHEREP1527018
OTHERUS6150299
OTHERUS7820586
SEARCHEP1052008
SEARCHEP1053779
SEARCHEP1174174
SEARCHWO03020643
SEARCHWO9743214

Dossier Documents

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