IP Verse

Method For Producing Temporarily Cross-Linked Cellulose Ethers

Patent No. EP1537149 (titled "Method For Producing Temporarily Cross-Linked Cellulose Ethers") was filed by Tylose on Aug 19, 2003. The application was issued on Jun 29, 2016.

Patent Summary

Patent Family

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

Patent Oppositions

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
AKZO NOBEL CHEMICALS INTERNATIONAL BVMar 29, 2017AKZO NOBEL CHEMICALS GROUP

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

EP1537149

TYLOSE
Application Number
EP03794891A
Filing Date
Aug 19, 2003
Status
Opposition Rejected
Feb 8, 2019
Publication Date
Jun 29, 2016
External Links
Slate, Register , Google Patents