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IP Verse

Water Absorbent Resin And Method For Producing Same - EP2615117

The patent EP2615117 was granted to Sumitomo Seika Chemicals on Dec 27, 2023. The application was filed on Sep 2, 2011 under application number EP11823500A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP2615117

SUMITOMO SEIKA CHEMICALS
Application Number
EP11823500A
Filing Date
Sep 2, 2011
Status
Patent Maintained As Amended
Nov 24, 2023
Publication Date
Dec 27, 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
NIPPON SHOKUBAIDec 16, 2021DR SCHONADMISSIBLE

Patent Citations (36) New

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

Citation PhasePublication Number
DESCRIPTIONJP2002284803
DESCRIPTIONJP2004002891
DESCRIPTIONJP2008533213
DESCRIPTIONJPH01294703
DESCRIPTIONJPH02153907
DESCRIPTIONJPH02196802
DESCRIPTIONJPH03227301
DESCRIPTIONJPH0517509
DESCRIPTIONJPH0543610
DESCRIPTIONJPH0857311
DESCRIPTIONJPH09510889
DESCRIPTIONJPH11140194
EXAMINATIONWO2006014031
INTERNATIONAL-SEARCH-REPORTJPH03195713
INTERNATIONAL-SEARCH-REPORTJPH03227301
INTERNATIONAL-SEARCH-REPORTWO2007123188
OPPOSITIONEP0349241
OPPOSITIONEP0789047
OPPOSITIONEP0789048
OPPOSITIONEP0812873
OPPOSITIONEP1142696
OPPOSITIONEP2011803
OPPOSITIONJP2001002935
OPPOSITIONUS2007015860
OPPOSITIONUS2007066754
OPPOSITIONUS5976696
OPPOSITIONWO2005011860
OPPOSITIONWO2005012406
OPPOSITIONWO2006014031
OPPOSITIONWO2007123188
SEARCHEP0441507
SEARCHEP2011803
SEARCHEP2184300
SEARCHEP2674441
SEARCHJPH03227301
SEARCHWO2007123188

Dossier Documents

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