The weekly litigation news digest is live. Subscribe now

IP Verse

Water Absorbent Sheet, Elongated Water Absorbent Sheet, And Absorbent Article

Patent No. EP3586957 (titled "Water Absorbent Sheet, Elongated Water Absorbent Sheet, And Absorbent Article") was filed by Nippon Shokubai on Feb 22, 2018. The application was issued on Mar 30, 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 SUPERABSORBERDec 15, 2022OFFICE FREYLINGER
STOCKHAUSEN SUPERABSORBERDec 15, 2022VOLLMER

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.

  • Date

    Description

  • Get instant alerts for new documents

EP3586957

NIPPON SHOKUBAI
Application Number
EP18757450A
Filing Date
Feb 22, 2018
Status
Granted And Under Opposition
Feb 25, 2022
Publication Date
Mar 30, 2022
External Links
Slate, EP3586957B1, Google Patents