Porous Zirconia Powder And Production Method Of Same

Patent No. EP1894620 (titled "Porous Zirconia Powder And Production Method Of Same") was filed by Daiichi Kigenso Kagaku Kogyo on Aug 21, 2007. The application was issued on Jun 7, 2023.

Patent Family

Statuses, jurisdictions and citation links are shared on request.

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	Jun 21, 2017	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

May 11, 2023
Decision to maintain the European patent in amended form
May 11, 2023
Decision to maintain the European patent in amended form
May 4, 2023
Termination of the opposition proceedings with maintenance of patent
Feb 17, 2023
(Electronic) Receipt
Feb 17, 2023
Amended description with annotations
Feb 17, 2023
Description
Feb 17, 2023
Filing of the translation of the amended claims
Feb 17, 2023
French translation of claims
Feb 17, 2023
German translation of the claims
Feb 17, 2023
Letter accompanying subsequently filed items
Nov 14, 2022
Maintenance of the patent with the documents specified in the final decision
Nov 14, 2022
Maintenance of the patent with the documents specified in the final decision
Mar 25, 2022
Refund of fees
Mar 25, 2022
Refund of fees
Mar 22, 2022
F3013 Oral Proceedings: Forwarding minutes
Mar 22, 2022
F3013 Oral Proceedings: Forwarding minutes
Mar 22, 2022
F3317 Oral Proceedings: Minutes (Appellant: Proprietor + Opponent)
Mar 22, 2022
F3317 Oral Proceedings: Minutes (Appellant: Proprietor + Opponent)
Mar 22, 2022
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Mar 22, 2022
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Mar 21, 2022
Maintenance of the patent with the documents specified in the final decision
Feb 18, 2022
F3345 Forwarding of submissions to parties
Feb 15, 2022
(Electronic) Receipt
Feb 15, 2022
Letter accompanying subsequently filed items
Feb 15, 2022
Letter dealing with oral proceedings during the appeal procedure
Jan 27, 2022
F3936 Acknowledgement of receipt Board of Appeal
Jan 26, 2022
F3345 Forwarding of submissions to parties
Jan 25, 2022
F3936 Acknowledgement of receipt Board of Appeal
Jan 21, 2022
(Electronic) Receipt
Jan 21, 2022
Letter accompanying subsequently filed items
Jan 21, 2022
Letter dealing with oral proceedings during the appeal procedure
Jan 20, 2022
Oral proceedings: change of venue
Jan 20, 2022
Oral proceedings: change of venue
Jan 19, 2022
F3345 Forwarding of submissions to parties
Jan 14, 2022
(Electronic) Receipt
Jan 14, 2022
Auxiliary request during appeals procedure - 01
Jan 14, 2022
Auxiliary request during appeals procedure - 02
Jan 14, 2022
Auxiliary request during appeals procedure - 03
Jan 14, 2022
Claims
Jan 14, 2022
Letter accompanying subsequently filed items
Jan 14, 2022
Letter dealing with oral proceedings during the appeal procedure
Jan 14, 2022
Request for interpreters during oral proceedings
Oct 12, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 12, 2021
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 17, 2021
F3936 Acknowledgement of receipt Board of Appeal
May 11, 2021
F3936 Acknowledgement of receipt Board of Appeal
May 4, 2021
F3011.1 Oral Proceedings: summons
May 4, 2021
F3011.1 Oral Proceedings: summons
Apr 29, 2021
F3010 Oral proceedings: order for summons
Mar 29, 2021
F3345 Forwarding of submissions to parties
Mar 23, 2021
(Electronic) Receipt
Mar 23, 2021
Letter accompanying subsequently filed items
Mar 23, 2021
Letter relating to Appeal Procedure
Feb 5, 2021
F3345 Forwarding of submissions to parties
Feb 1, 2021
(Electronic) Receipt
Feb 1, 2021
Letter accompanying subsequently filed items
Feb 1, 2021
Letter relating to Appeal Procedure
Dec 15, 2020
Communication of amended entries concerning the representative
Dec 9, 2020
Submission concerning change of applicant's representative
Nov 26, 2020
Composition of the board (T)
Nov 18, 2020
F3345 Forwarding of submissions to parties
Nov 13, 2020
(Electronic) Receipt
Nov 13, 2020
Cited document during appeal procedure
Nov 13, 2020
Letter accompanying subsequently filed items
Nov 13, 2020
Letter relating to Appeal Procedure
Sep 20, 2019
F3345 Forwarding of submissions to parties
Sep 16, 2019
(Electronic) Receipt
Sep 16, 2019
Cited document during appeal procedure
Sep 16, 2019
Cited document during appeal procedure
Sep 16, 2019
Letter accompanying subsequently filed items
Sep 16, 2019
Non-Patent Literature cited during the appeal procedure
Sep 16, 2019
Non-Patent Literature cited during the appeal procedure
Sep 16, 2019
Reply to appeal
Sep 11, 2019
F3345 Forwarding of submissions to parties
Sep 5, 2019
(Electronic) Receipt
Sep 5, 2019
Letter accompanying subsequently filed items
Sep 5, 2019
Reply to appeal
May 6, 2019
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
May 6, 2019
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Apr 29, 2019
(Electronic) Receipt
Apr 29, 2019
(Electronic) Receipt
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Amended claims with annotations
Apr 29, 2019
Annexes (other than cited documents) regarding appeal procedure
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Claims
Apr 29, 2019
Letter accompanying subsequently filed items
Apr 29, 2019
Letter accompanying subsequently filed items
Apr 29, 2019
Non-Patent Literature cited during the appeal procedure
Apr 29, 2019
Statement of grounds of appeal
Apr 29, 2019
Statement of grounds of appeal
Feb 28, 2019
F3204 Communication of the file number to the parties
Feb 28, 2019
F3204 Communication of the file number to the parties
Feb 21, 2019
Processing of an appeal
Feb 20, 2019
(Electronic) Receipt
Feb 20, 2019
(Electronic) Receipt
Feb 20, 2019
Letter accompanying subsequently filed items
Feb 20, 2019
Letter accompanying subsequently filed items
Feb 20, 2019
Notice of appeal
Feb 20, 2019
Notice of appeal
Jan 2, 2019
Advice of delivery
Dec 28, 2018
Advice of delivery
Dec 24, 2018
Advice of delivery
Dec 21, 2018
Advice of delivery
Dec 20, 2018
Acknowledgement of a document
Dec 20, 2018
Acknowledgement of a document
Dec 20, 2018
Annex to the communication - opposition
Dec 20, 2018
Decision of the Opposition Division and instruction
Dec 20, 2018
Grounds for the decision (Annex) - opposition
Dec 20, 2018
Interlocutory decision in opposition proceedings
Dec 20, 2018
Internal form - Opposition/addressees
Dec 20, 2018
Internal form - Opposition/addressees
Dec 20, 2018
Means of redress
Dec 20, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 20, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 20, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 20, 2018
OPPODREX with handwritten amendments
Dec 20, 2018
Provision of a copy of the minutes - opposition procedure
Dec 20, 2018
Scanned annex to a communication - opposition procedure
Dec 20, 2018
Scanned annex to a communication - opposition procedure
Nov 20, 2018
Information about the result of oral proceedings
Oct 19, 2018
Annex to the communication - opposition
Oct 19, 2018
Notification concerning the date of oral proceedings
Oct 19, 2018
Notification concerning the date of oral proceedings
Oct 11, 2018
Brief communication - Opposition proceedings
Oct 8, 2018
(Electronic) Receipt
Oct 8, 2018
Letter accompanying subsequently filed items
Oct 8, 2018
Written submission in preparation to/during oral proceedings
Sep 25, 2018
Brief communication - Opposition proceedings
Sep 24, 2018
Brief communication - Opposition proceedings
Sep 21, 2018
Brief communication - Opposition proceedings
Sep 21, 2018
Brief communication - Opposition proceedings
Sep 19, 2018
(Electronic) Receipt
Sep 19, 2018
Citation in opposition procedure
Sep 19, 2018
Citation in opposition procedure
Sep 19, 2018
Citation in opposition procedure
Sep 19, 2018
Citation in opposition procedure
Sep 19, 2018
Citation in opposition procedure
Sep 19, 2018
Letter accompanying subsequently filed items
Sep 19, 2018
Written submission in preparation to/during oral proceedings
Sep 18, 2018
(Electronic) Receipt
Sep 18, 2018
Amended claims with annotations
Sep 18, 2018
Amended claims with annotations
Sep 18, 2018
Amended claims with annotations
Sep 18, 2018
Amended claims with annotations
Sep 18, 2018
Amended claims with annotations
Sep 18, 2018
Amended claims with annotations
Sep 18, 2018
Citation in opposition procedure
Sep 18, 2018
Citation in opposition procedure
Sep 18, 2018
Citation in opposition procedure
Sep 18, 2018
Claims
Sep 18, 2018
Claims
Sep 18, 2018
Claims
Sep 18, 2018
Claims
Sep 18, 2018
Claims
Sep 18, 2018
Claims
Sep 18, 2018
Letter accompanying subsequently filed items
Sep 18, 2018
Written submission in preparation to/during oral proceedings
Sep 17, 2018
(Electronic) Receipt
Sep 17, 2018
(Electronic) Receipt
Sep 17, 2018
Letter accompanying subsequently filed items
Sep 17, 2018
Request for interpreters during oral proceedings
Sep 17, 2018
Request for interpreters during oral proceedings
May 15, 2018
Advice of delivery
May 14, 2018
Advice of delivery
May 9, 2018
Advice of delivery
May 9, 2018
Brief communication - Opposition proceedings
May 8, 2018
Advice of delivery
May 8, 2018
Advice of delivery
May 7, 2018
Acknowledgement of a document
May 7, 2018
Acknowledgement of a document
May 7, 2018
Information concerning oral proceedings
May 7, 2018
Summons to attend oral proceedings
May 7, 2018
Summons to attend oral proceedings
May 4, 2018
(Electronic) Receipt
May 4, 2018
Letter accompanying subsequently filed items
May 4, 2018
Notification concerning the date of oral proceedings
May 4, 2018
Notification concerning the date of oral proceedings
May 4, 2018
Written submission in preparation to/during oral proceedings
May 3, 2018
Advice of delivery
May 3, 2018
Brief communication - Opposition proceedings
Apr 30, 2018
Brief communication - Opposition proceedings
Apr 26, 2018
(Electronic) Receipt
Apr 26, 2018
Any annexes (other than citation) to an opposition letter
Apr 26, 2018
Letter accompanying subsequently filed items
Apr 26, 2018
Oral proceedings: Request for postponement
Apr 24, 2018
Advice of delivery
Apr 23, 2018
(Electronic) Receipt
Apr 23, 2018
Advice of delivery
Apr 23, 2018
Brief communication - Opposition proceedings
Apr 23, 2018
Letter accompanying subsequently filed items
Apr 23, 2018
Oral proceedings: Request for postponement
Apr 20, 2018
Acknowledgement of a document
Apr 20, 2018
Acknowledgement of a document
Apr 20, 2018
Annex to the communication - opposition
Apr 20, 2018
Information concerning oral proceedings
Apr 20, 2018
Preparation for oral proceedings
Apr 20, 2018
Summons to attend oral proceedings
Apr 20, 2018
Summons to attend oral proceedings
Apr 17, 2018
Letter regarding the opposition procedure (no time limit)
Apr 17, 2018
Letter regarding the opposition procedure (no time limit)
Apr 17, 2018
Non-patent literature cited during the opposition procedure
Apr 17, 2018
Non-patent literature cited during the opposition procedure
Apr 17, 2018
Patent document cited during the opposition procedure
Dec 19, 2017
Brief communication - Opposition proceedings
Dec 12, 2017
Amended claims with annotations
Dec 12, 2017
Amended claims with annotations
Dec 12, 2017
Amended claims with annotations
Dec 12, 2017
Amended claims with annotations
Dec 12, 2017
Amended claims with annotations
Dec 12, 2017
Claims
Dec 12, 2017
Claims
Dec 12, 2017
Claims
Dec 12, 2017
Claims
Dec 12, 2017
Claims
Dec 12, 2017
Non-patent literature cited during the opposition procedure
Dec 12, 2017
Non-patent literature cited during the opposition procedure
Dec 12, 2017
Non-patent literature cited during the opposition procedure
Dec 12, 2017
Non-patent literature cited during the opposition procedure
Dec 12, 2017
Non-patent literature cited during the opposition procedure
Dec 12, 2017
Non-patent literature cited during the opposition procedure
Dec 12, 2017
Reply of the patent proprietor to the notice(s) of opposition
Sep 7, 2017
Communication confirming withdrawal from representation
Sep 7, 2017
Communication of amended entries concerning the representative
Aug 31, 2017
Authorisation
Aug 31, 2017
Request for change of opponent's representative
Aug 29, 2017
Authorisation
Aug 29, 2017
Request for change of opponent's representative
Aug 3, 2017
Brief communication - Opposition proceedings
Aug 3, 2017
Communication of a notice of opposition and request to file observations
Aug 3, 2017
Notice of further oppositions to opponent(s)
Jul 31, 2017
(Electronic) Receipt
Jul 31, 2017
Letter accompanying subsequently filed items
Jul 31, 2017
Submission concerning change of applicant's representative
Jul 5, 2017
Communication of a notice of opposition - first information to patent proprietor
Jun 21, 2017
(Electronic) Receipt
Jun 21, 2017
Non-patent literature cited during the opposition procedure
Jun 21, 2017
Non-patent literature cited during the opposition procedure
Jun 21, 2017
Non-patent literature cited during the opposition procedure
Jun 21, 2017
Non-patent literature cited during the opposition procedure
Jun 21, 2017
Non-patent literature cited during the opposition procedure
Jun 21, 2017
Non-patent literature cited during the opposition procedure
Jun 21, 2017
Notice of opposition
Jun 21, 2017
Notice of opposition
Jun 21, 2017
Patent document cited during the opposition procedure
Jun 21, 2017
Patent document cited during the opposition procedure
Jun 21, 2017
Patent document cited during the opposition procedure
Jun 21, 2017
Patent document cited during the opposition procedure
Jun 21, 2017
Patent document cited during the opposition procedure
Jun 21, 2017
Patent document cited during the opposition procedure
Jun 21, 2017
Patent document cited during the opposition procedure
Jun 21, 2017
Patent document cited during the opposition procedure
Nov 11, 2016
Communication of amended entries concerning the representative
Nov 8, 2016
Submission concerning change of applicant's representative
Sep 21, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 25, 2016
Decision to grant a European patent
Jul 13, 2016
(Electronic) Receipt
Jul 13, 2016
Filing of the translations of the claims
Jul 13, 2016
French translation of claims
Jul 13, 2016
German translation of the claims
Jul 13, 2016
Letter accompanying subsequently filed items
Apr 7, 2016
Bibliographic data of the European patent application
Apr 7, 2016
Communication about intention to grant a European patent
Apr 7, 2016
Intention to grant (signatures)
Apr 7, 2016
Text intended for grant (clean copy)
Apr 7, 2016
Text intended for grant (version for approval)
Feb 11, 2016
Annex to the communication
Feb 11, 2016
Consultation by telephone/in person
Feb 11, 2016
Result of consultation by telephone/in person
Feb 1, 2016
Grant of extension of time limit (examination procedure)
Jan 28, 2016
(Electronic) Receipt
Jan 28, 2016
Amended claims with annotations
Jan 28, 2016
Amended description with annotations
Jan 28, 2016
Claims
Jan 28, 2016
Description
Jan 28, 2016
Letter accompanying subsequently filed items
Jan 28, 2016
Reply to communication from the Examining Division
Jan 26, 2016
(Electronic) Receipt
Jan 26, 2016
Letter accompanying subsequently filed items
Jan 26, 2016
Request for extension of time limit to communication from the Examining Division
Nov 16, 2015
Annex to the communication
Nov 16, 2015
Communication from the Examining Division
Oct 28, 2014
(Electronic) Receipt
Oct 28, 2014
Letter accompanying subsequently filed items
Oct 28, 2014
Reply to communication from the Examining Division
Oct 27, 2014
Annex to the communication
Oct 27, 2014
Consultation by telephone/in person
Oct 27, 2014
Result of consultation by telephone/in person
Sep 10, 2014
Submission concerning representation
Aug 27, 2014
Annex to the communication
Aug 27, 2014
Communication from the Examining Division
Jun 29, 2012
Submission concerning representation
Aug 12, 2011
(Electronic) Receipt
Aug 12, 2011
Claims
Aug 12, 2011
Description
Aug 12, 2011
Description
Aug 12, 2011
Letter accompanying subsequently filed items
Aug 12, 2011
Reply to communication from the Examining Division
Aug 12, 2011
Reply to communication from the Examining Division
Jun 9, 2011
Grant of extension of time limit (examination procedure)
Jun 2, 2011
(Electronic) Receipt
Jun 2, 2011
Letter accompanying subsequently filed items
Jun 2, 2011
Request for extension of time limit to communication from the Examining Division
Feb 11, 2011
Annex to the communication
Feb 11, 2011
Communication from the Examining Division
Oct 28, 2009
CDS Clean up - amended data concerning the representative for the applicant
Jan 20, 2009
Final instructions (loss of partial rights)
Oct 10, 2008
Designation deemed to be withdrawn (non payment of designation fees)
Sep 4, 2008
(Electronic) Receipt
Sep 4, 2008
Claims
Sep 4, 2008
Claims
Sep 4, 2008
Letter accompanying subsequently filed items
Sep 4, 2008
Reply to communication from the Examining Division
May 8, 2008
Communication from the Examining Division
Apr 8, 2008
(Electronic) Receipt
Apr 8, 2008
Letter accompanying subsequently filed items
Apr 8, 2008
Letter concerning the designation and/or extension and/or validation of states
Mar 10, 2008
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Feb 6, 2008
Notification of forthcoming publication
Dec 19, 2007
Communication regarding the transmission of the European search report
Dec 19, 2007
European search opinion
Dec 19, 2007
European search report
Sep 24, 2007
Confirmation of receipt of (electronically) transmitted priority document
Aug 30, 2007
Priority document (electronically transmitted)
Aug 30, 2007
Priority document (electronically transmitted)
Aug 21, 2007
Abstract
Aug 21, 2007
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Aug 21, 2007
Claims
Aug 21, 2007
Description
Aug 21, 2007
Designation of inventor
Aug 21, 2007
Drawings
Aug 21, 2007
Request for grant of a European patent

EP1894620

DAIICHI KIGENSO KAGAKU KOGYO

Application Number: EP07114715A
Filing Date: Aug 21, 2007
Status: Patent Maintained As Amended; May 5, 2023
Publication Date: Jun 7, 2023
External Links: Slate, Register , Google Patents

IP Verse

Porous Zirconia Powder And Production Method Of Same

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP1894620