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IP Verse

Polyether Carbonate Polyols Made Via Double Metal Cyanide (Dmc) Catalysis - EP2046861

The patent EP2046861 was granted to Bayer Materialscience on Jan 23, 2019. The application was originally filed on Jul 19, 2007 under application number EP07796940A. The patent is currently recorded with a legal status of "Revoked".

EP2046861

BAYER MATERIALSCIENCE
Application Number
EP07796940A
Filing Date
Jul 19, 2007
Status
Revoked
Jan 7, 2022
Publication Date
Jan 23, 2019
External Links
Slate, Register, Google Patents

Patent Summary

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

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ECONICOct 23, 2019APPLEYARD LEESADMISSIBLE
REPSOLOct 23, 2019ZBM PATENTS ZEAADMISSIBLE

Patent Citations (25) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTUS4500704
INTERNATIONAL-SEARCH-REPORTUS4826953
INTERNATIONAL-SEARCH-REPORTUS6713599
INTERNATIONAL-SEARCH-REPORTWO03029240
INTERNATIONAL-SEARCH-REPORTWO2006103214
OPPOSITIONEP1866359
OPPOSITIONEP2091990
OPPOSITIONUS2001046940
OPPOSITIONUS2003149232
OPPOSITIONUS4826953
OPPOSITIONUS5470813
OPPOSITIONUS5482908
OPPOSITIONUS5712216
OPPOSITIONUS5777177
OPPOSITIONUS5783513
OPPOSITIONUS6670406
OPPOSITIONUS6713599
OPPOSITIONUS6762278
OPPOSITIONUS6780813
OPPOSITIONWO2006103212
OPPOSITIONWO2006103213
OPPOSITIONWO2012156431
OTHERUS2003149232
OTHERUS5482908
OTHERUS5783513

Dossier Documents

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