Cold Water Soluble Polyvinyl Alcohol/Alkyl Acrylate Copolymers And Films Thereof

Patent No. EP2655447 (titled "Cold Water Soluble Polyvinyl Alcohol/Alkyl Acrylate Copolymers And Films Thereof") was filed by Sekisui Specialty Chemicals America on Dec 16, 2011. The application was issued on Jun 10, 2015.

Patent Summary

Patent Family

Patent family tree
Statuses, jurisdictions and citation links are shared on request.

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
MONOSOLMar 10, 2016MAI BESIER
THE PROCTER & GAMBLEMar 10, 2016CLARKE

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

EP2655447

SEKISUI SPECIALTY CHEMICALS AMERICA
Application Number
EP11808485A
Filing Date
Dec 16, 2011
Status
Revoked
Apr 15, 2019
Publication Date
Jun 10, 2015