Methods For Preparing Alkali Cellulose And Cellulose Ether - EP1734055

The patent EP1734055 was granted to Shin Etsu Chemical on Apr 26, 2017. The application was originally filed on Jun 6, 2006 under application number EP06252932A. The patent is currently recorded with a legal status of "Revoked".

EP1734055

SHIN ETSU CHEMICAL
Application Number
EP06252932A
Filing Date
Jun 6, 2006
Status
Revoked
Sep 16, 2022
Publication Date
Apr 26, 2017
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

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 DateRepresentativeOpposition Status

Get instant alerts for new oppositions and patent status changes

THE DOW CHEMICALJan 23, 2018N&H EMEAADMISSIBLE

Patent Citations (12) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
DESCRIPTIONJP132579
DESCRIPTIONJP2001302701
DESCRIPTIONJPS5616501
DESCRIPTIONJPS58103501
OPPOSITIONEP0567869
OPPOSITIONUS3734471
SEARCHDD264001
SEARCHDE838593
SEARCHGB1331243
SEARCHGB1493321
SEARCHUS3273807
SEARCHUS3322748

Non-Patent Literature (NPL) Citations (2) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference Text
OPPOSITION- "CoriMix® Hochleistungs-Ringschichtmixer", Draiswerke GmbH, (20021029), XP055457284
OPPOSITION- "High speed Continuous Mixer for the Cellulose Ether Industry", ChemCell Speciality Pulp Seminar, (20020626), XP055457273

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

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