Particulate Water Absorbent And Process For Production Thereof

Patent No. EP2484439 (titled "Particulate Water Absorbent And Process For Production Thereof") was filed by Nippon Shokubai on Sep 29, 2010. The application was issued on Jun 24, 2026.

Patent Summary

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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 DateRepresentative
EVONIK SUPERABSORBERSep 13, 2023EVONIK PATENT ASSOCIATION
STOCKHAUSEN SUPERABSORBERSep 13, 2023AERA

Dossier Documents

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EP2484439

NIPPON SHOKUBAI
Application Number
EP10820587A
Filing Date
Sep 29, 2010
Status
Patent Maintained As Amended
May 22, 2026
Publication Date
Jun 24, 2026