IP Verse

Zirconia-Ceria-Yttria-Based Mixed Oxide And Process For Producing The Same

Patent No. EP1921044 (titled "Zirconia-Ceria-Yttria-Based Mixed Oxide And Process For Producing The Same") was filed by Daiichi Kigenso Kagaku Kogyo on Oct 10, 2007. The application was issued on Feb 28, 2018.

Patent Summary

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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.

Company	Opposition Date	Representative
NEO CHEMICALS & OXIDES EUROPE	Nov 28, 2018	BIRD & BIRD

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

Jul 9, 2020
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Jul 9, 2020
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jul 6, 2020
Termination of the opposition proceedings with maintenance of patent
Mar 5, 2020
Advice of delivery
Mar 5, 2020
Advice of delivery
Mar 3, 2020
Acknowledgement of a document
Mar 3, 2020
Acknowledgement of a document
Mar 3, 2020
Annex to the communication - opposition
Mar 3, 2020
Decision of the Opposition Division and instruction
Mar 3, 2020
Decision rejecting the opposition
Mar 3, 2020
Grounds for the decision (Annex) - opposition
Mar 3, 2020
Internal form - Opposition/addressees
Mar 3, 2020
Internal form - Opposition/addressees
Mar 3, 2020
Means of redress
Mar 3, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 3, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 3, 2020
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 3, 2020
Provision of a copy of the minutes - opposition procedure
Mar 3, 2020
Scanned annex to a communication - opposition procedure
Feb 5, 2020
Information about the result of oral proceedings
Jan 30, 2020
Brief communication - Opposition proceedings
Jan 24, 2020
(Electronic) Receipt
Jan 24, 2020
Letter accompanying subsequently filed items
Jan 24, 2020
Written submission in preparation to/during oral proceedings
Dec 10, 2019
Brief communication - Opposition proceedings
Dec 9, 2019
Brief communication - Opposition proceedings
Dec 4, 2019
(Electronic) Receipt
Dec 4, 2019
Citation in opposition procedure - 001
Dec 4, 2019
Citation in opposition procedure - 001
Dec 4, 2019
Citation in opposition procedure - 012
Dec 4, 2019
Citation in opposition procedure - 013
Dec 4, 2019
Citation in opposition procedure - 014
Dec 4, 2019
Citation in opposition procedure - 015
Dec 4, 2019
Citation in opposition procedure - 015
Dec 4, 2019
Citation in opposition procedure - 016
Dec 4, 2019
Consolidated list of cited opposition documents
Dec 4, 2019
Request for interpreters during oral proceedings
Dec 4, 2019
Written submission in preparation to/during oral proceedings
Dec 3, 2019
(Electronic) Receipt
Dec 3, 2019
Letter accompanying subsequently filed items
Dec 3, 2019
Oral proceedings: reply to date proposed
Sep 2, 2019
Advice of delivery
Aug 29, 2019
Advice of delivery
Aug 28, 2019
Advice of delivery
Aug 26, 2019
Acknowledgement of a document
Aug 26, 2019
Acknowledgement of a document
Aug 26, 2019
Annex to the communication - opposition
Aug 26, 2019
Information concerning oral proceedings
Aug 26, 2019
Summons to attend oral proceedings
Aug 26, 2019
Summons to attend oral proceedings
Apr 29, 2019
Brief communication - Opposition proceedings
Apr 23, 2019
(Electronic) Receipt
Apr 23, 2019
Amended claims with annotations
Apr 23, 2019
Amended claims with annotations
Apr 23, 2019
Amended claims with annotations
Apr 23, 2019
Amended claims with annotations
Apr 23, 2019
Citation in opposition procedure - 011
Apr 23, 2019
Claims
Apr 23, 2019
Claims
Apr 23, 2019
Claims
Apr 23, 2019
Claims
Apr 23, 2019
Letter accompanying subsequently filed items
Apr 23, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jan 11, 2019
Communication confirming withdrawal from representation
Jan 11, 2019
Communication of amended entries concerning the representative
Jan 7, 2019
(Electronic) Receipt
Jan 7, 2019
Letter accompanying subsequently filed items
Jan 7, 2019
Submission concerning change of applicant's representative
Dec 13, 2018
Communication of a notice of opposition and request to file observations
Dec 13, 2018
Notice of further oppositions to opponent(s)
Dec 6, 2018
Communication of a notice of opposition - first information to patent proprietor
Nov 28, 2018
(Electronic) Receipt
Nov 28, 2018
Citation in opposition procedure - 001
Nov 28, 2018
Citation in opposition procedure - 002
Nov 28, 2018
Citation in opposition procedure - 003
Nov 28, 2018
Citation in opposition procedure - 004
Nov 28, 2018
Citation in opposition procedure - 005
Nov 28, 2018
Citation in opposition procedure - 006
Nov 28, 2018
Citation in opposition procedure - 007
Nov 28, 2018
Citation in opposition procedure - 008
Nov 28, 2018
Citation in opposition procedure - 008
Nov 28, 2018
Citation in opposition procedure - 009
Nov 28, 2018
Citation in opposition procedure - 009
Nov 28, 2018
Citation in opposition procedure - 010
Nov 28, 2018
Notice of opposition
Nov 28, 2018
Notice of opposition
Nov 28, 2018
Patent document cited during the opposition procedure
Mar 16, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 1, 2018
Decision to grant a European patent
Jan 17, 2018
Bibliographic data of the European patent application
Jan 17, 2018
Information about intention to grant a patent
Jan 17, 2018
Intention to grant (signatures)
Jan 17, 2018
Text intended for grant (clean copy)
Jan 17, 2018
Text intended for grant (version for approval)
Jan 10, 2018
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Dec 18, 2017
(Electronic) Receipt
Dec 18, 2017
Amended description with annotations
Dec 18, 2017
Description
Dec 18, 2017
French translation of claims
Dec 18, 2017
German translation of the claims
Dec 18, 2017
Letter accompanying subsequently filed items
Dec 18, 2017
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Nov 7, 2017
Brief communication to applicant/representative
Nov 2, 2017
Bibliographic data of the European patent application
Nov 1, 2017
(Electronic) Receipt
Nov 1, 2017
Letter accompanying subsequently filed items
Nov 1, 2017
Letter concerning the inventor
Oct 27, 2017
Communication of the registration of a transfer or change of name and/or address
Oct 16, 2017
(Electronic) Receipt
Oct 16, 2017
Letter accompanying subsequently filed items
Oct 16, 2017
Submission concerning change of applicant's address
Sep 22, 2017
Bibliographic data of the European patent application
Sep 22, 2017
Communication about intention to grant a European patent
Sep 22, 2017
Intention to grant (signatures)
Sep 22, 2017
Text intended for grant (clean copy)
Sep 22, 2017
Text intended for grant (version for approval)
Apr 18, 2017
(Electronic) Receipt
Apr 18, 2017
Amended claims with annotations
Apr 18, 2017
Amended description with annotations
Apr 18, 2017
Claims
Apr 18, 2017
Description
Apr 18, 2017
Letter accompanying subsequently filed items
Apr 18, 2017
Reply to communication from the Examining Division
Dec 20, 2016
Annex to the communication
Dec 20, 2016
Communication from the Examining Division
Dec 14, 2016
Examination started
Sep 26, 2016
Notification regarding date of start of examination with possibility to withdraw
Sep 10, 2014
Submission concerning representation
Jun 29, 2012
Submission concerning representation
Apr 29, 2010
Final instructions (loss of partial rights)
Jan 20, 2010
Designation deemed to be withdrawn (non payment of designation fees)
Nov 2, 2009
(Electronic) Receipt
Nov 2, 2009
Letter accompanying subsequently filed items
Nov 2, 2009
Letter concerning fees and payments
Jun 15, 2009
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Jun 11, 2009
(Electronic) Receipt
Jun 11, 2009
Amended claims filed after receipt of (European) search report
Jun 11, 2009
Amended description filed after receipt of (European) search report
Jun 11, 2009
Amendments received before examination
Jun 11, 2009
Amendments received before examination
Jun 11, 2009
Claims
Jun 11, 2009
Description
Jun 11, 2009
Letter accompanying subsequently filed items
May 11, 2009
Communication regarding the transmission of the European search report
May 11, 2009
European search opinion
May 11, 2009
European search report
Apr 16, 2008
Notification of forthcoming publication
Oct 23, 2007
Confirmation of receipt of (electronically) transmitted priority document
Oct 18, 2007
Priority document (electronically transmitted)
Oct 18, 2007
Priority document (electronically transmitted)
Oct 10, 2007
Abstract
Oct 10, 2007
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Oct 10, 2007
Claims
Oct 10, 2007
Description
Oct 10, 2007
Designation of inventor
Oct 10, 2007
Designation of inventor
Oct 10, 2007
Drawings
Oct 10, 2007
Request for grant of a European patent

EP1921044

DAIICHI KIGENSO KAGAKU KOGYO

Application Number: EP07118246A
Filing Date: Oct 10, 2007
Status: Opposition Rejected; Jul 10, 2020
Publication Date: Feb 28, 2018
External Links: Slate, Register , Google Patents