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IP Verse

Water Absorbent Agent

Patent No. EP3984633 (titled "Water Absorbent Agent") was filed by Nippon Shokubai on Dec 28, 2015. The application was issued on Nov 22, 2023.

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 SUPERABSORBERAug 15, 2024OFFICE FREYLINGER
STOCKHAUSEN SUPERABSORBERAug 15, 2024VOLLMER

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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EP3984633

NIPPON SHOKUBAI
Application Number
EP21213618A
Filing Date
Dec 28, 2015
Status
Granted And Under Opposition
Oct 20, 2023
Publication Date
Nov 22, 2023
External Links
Slate, EP3984633B1, Google Patents