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IP Verse

Particulate Water Absorbing Agent

Patent No. EP3437732 (titled "Particulate Water Absorbing Agent") was filed by Nippon Shokubai on Mar 28, 2017. The application was issued on May 11, 2022.

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 DateRepresentative
STOCKHAUSEN SUPERABSORBERJan 27, 2023OFFICE FREYLINGER
STOCKHAUSEN SUPERABSORBERJan 27, 2023VOLLMER

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

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EP3437732

NIPPON SHOKUBAI
Application Number
EP17775142A
Filing Date
Mar 28, 2017
Status
Granted And Under Opposition
Apr 8, 2022
Publication Date
May 11, 2022
External Links
Slate, EP3437732B1, Google Patents