Lithium Silicate Glass Ceramic And Glass With Zro2 Content

Patent No. EP2377831 (titled "Lithium Silicate Glass Ceramic And Glass With Zro2 Content") was filed by Ivoclar Vivadent on Apr 18, 2011. The application was issued on Apr 13, 2016.

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
VITA ZAHNFABRIK H RAUTER	Jan 12, 2017	DOMPATENT VON KREISLER SELTING WERNER

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

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Apr 4, 2019
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Apr 1, 2019
Termination of the opposition proceedings with maintenance of patent
Jan 7, 2019
Advice of delivery
Dec 27, 2018
(Electronic) Receipt
Dec 27, 2018
Advice of delivery
Dec 27, 2018
Letter accompanying subsequently filed items
Dec 21, 2018
Acknowledgement of a document
Dec 21, 2018
Decision to discontinue the opposition proceedings
Dec 21, 2018
Notification concerning the date of oral proceedings
Dec 20, 2018
(Electronic) Receipt
Dec 20, 2018
Letter accompanying subsequently filed items
Dec 20, 2018
Written submission in preparation to/during oral proceedings
Dec 19, 2018
Brief communication - Opposition proceedings
Dec 19, 2018
Brief communication - Opposition proceedings
Dec 19, 2018
Brief communication - Opposition proceedings
Dec 13, 2018
(Electronic) Receipt
Dec 13, 2018
Letter accompanying subsequently filed items
Dec 13, 2018
Withdrawal of an opposition
Jul 5, 2018
Advice of delivery
Jul 5, 2018
Advice of delivery
Jul 5, 2018
Advice of delivery
Jul 5, 2018
Advice of delivery
Jul 4, 2018
Advice of delivery
Jul 3, 2018
Advice of delivery
Jun 29, 2018
Acknowledgement of a document
Jun 29, 2018
Acknowledgement of a document
Jun 29, 2018
Information concerning oral proceedings
Jun 29, 2018
Notification concerning the date of oral proceedings
Jun 29, 2018
Notification concerning the date of oral proceedings
Jun 29, 2018
Summons to attend oral proceedings
Jun 29, 2018
Summons to attend oral proceedings
Jun 21, 2018
Brief communication - Opposition proceedings
Jun 18, 2018
(Electronic) Receipt
Jun 18, 2018
Advice of delivery
Jun 18, 2018
Advice of delivery
Jun 18, 2018
Any annexes (other than citation) to an opposition letter
Jun 18, 2018
Letter accompanying subsequently filed items
Jun 18, 2018
Oral proceedings: Request for postponement
Jun 15, 2018
Advice of delivery
Jun 13, 2018
Acknowledgement of a document
Jun 13, 2018
Acknowledgement of a document
Jun 13, 2018
Information concerning oral proceedings
Jun 13, 2018
Notification concerning the date of oral proceedings
Jun 13, 2018
Notification concerning the date of oral proceedings
Jun 13, 2018
Summons to attend oral proceedings
Jun 13, 2018
Summons to attend oral proceedings
Jun 5, 2018
Brief communication - Opposition proceedings
May 30, 2018
(Electronic) Receipt
May 30, 2018
Any annexes (other than citation) to an opposition letter
May 30, 2018
Oral proceedings: Request for postponement
May 29, 2018
Brief communication - Opposition proceedings
May 17, 2018
Oral proceedings: Request for postponement
May 15, 2018
Advice of delivery
May 15, 2018
Advice of delivery
May 14, 2018
Advice of delivery
May 14, 2018
Advice of delivery
May 14, 2018
Advice of delivery
May 8, 2018
Acknowledgement of a document
May 8, 2018
Acknowledgement of a document
May 8, 2018
Annex to the communication - opposition
May 8, 2018
Information concerning oral proceedings
May 8, 2018
Summons to attend oral proceedings
May 8, 2018
Summons to attend oral proceedings
May 2, 2018
Preparation for oral proceedings
Sep 7, 2017
Brief communication - Opposition proceedings
Aug 14, 2017
Letter regarding the opposition procedure (no time limit)
Jul 4, 2017
Brief communication - Opposition proceedings
Jun 27, 2017
(Electronic) Receipt
Jun 27, 2017
Letter accompanying subsequently filed items
Jun 27, 2017
Patent document cited during the opposition procedure
Jun 27, 2017
Reply of the patent proprietor to the notice(s) of opposition
Feb 17, 2017
Communication of a notice of opposition and request to file observations
Feb 17, 2017
Notice of further oppositions to opponent(s)
Jan 23, 2017
Communication of a notice of opposition - first information to patent proprietor
Jan 13, 2017
Letter regarding the opposition procedure (no time limit)
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Non-patent literature cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Patent document cited during the opposition procedure
Jan 13, 2017
Payment of fees and costs
Jan 12, 2017
Abstract
Jan 12, 2017
Claims
Jan 12, 2017
Description
Jan 12, 2017
Drawings
Jan 12, 2017
Letter regarding the opposition procedure (no time limit)
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Non-patent literature cited during the opposition procedure
Jan 12, 2017
Payment of fees and costs
Jan 12, 2017
Payment of fees and costs
Apr 20, 2016
Refund of fees
Apr 14, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 13, 2016
CDS Clean up - amended data concerning the representative of the applicant (Association)
Apr 1, 2016
Submission concerning representation
Mar 17, 2016
Decision to grant a European patent
Feb 25, 2016
(Electronic) Receipt
Feb 25, 2016
Filing of the translations of the claims
Feb 25, 2016
Letter accompanying subsequently filed items
Feb 23, 2016
Bibliographic data of the European patent application
Feb 23, 2016
Communication about intention to grant a European patent
Feb 23, 2016
Intention to grant (signatures)
Feb 23, 2016
Text intended for grant
Feb 10, 2016
(Electronic) Receipt
Feb 10, 2016
Letter accompanying subsequently filed items
Feb 10, 2016
Letter concerning the inventor
Feb 9, 2016
(Electronic) Receipt
Feb 9, 2016
English translation of the claims
Feb 9, 2016
Filing of the translations of the claims
Feb 9, 2016
French translation of claims
Feb 9, 2016
Letter accompanying subsequently filed items
Feb 5, 2016
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Feb 4, 2016
Acknowledgement of receipt of third party observations
Feb 4, 2016
Transmittal of third party observations to applicant
Jan 19, 2016
Observations by third parties
Jan 18, 2016
Observations by third parties
Nov 24, 2015
Bibliographic data of the European patent application
Nov 24, 2015
Communication about intention to grant a European patent
Nov 24, 2015
Intention to grant (signatures)
Nov 24, 2015
Text intended for grant
Oct 22, 2015
(Electronic) Receipt
Oct 22, 2015
Amended claims with annotations
Oct 22, 2015
Amended description with annotations
Oct 22, 2015
Claims
Oct 22, 2015
Description
Oct 22, 2015
Letter accompanying subsequently filed items
Oct 22, 2015
Reply to communication from the Examining Division
Jun 12, 2015
Annex to the communication
Jun 12, 2015
Consultation by telephone/in person (with time limit)
Jun 12, 2015
Result of consultation by telephone/in person
Jun 2, 2015
Response to enquiry for communication from the Examining Division
May 27, 2015
(Electronic) Receipt
May 27, 2015
Enquiry as to when a communication from the Examining Division can be expected
May 27, 2015
Letter accompanying subsequently filed items
Oct 24, 2014
Correction to A-publication
Sep 17, 2014
(Electronic) Receipt
Sep 17, 2014
Amended claims with annotations
Sep 17, 2014
Amended description with annotations
Sep 17, 2014
Claims
Sep 17, 2014
Description
Sep 17, 2014
Letter accompanying subsequently filed items
Sep 17, 2014
Reply to communication from the Examining Division
Jul 21, 2014
Request for correction
May 7, 2014
Annex to the communication
May 7, 2014
Communication from the Examining Division
Nov 27, 2013
(Electronic) Receipt
Nov 27, 2013
Amended claims with annotations
Nov 27, 2013
Amended description with annotations
Nov 27, 2013
Claims
Nov 27, 2013
Description
Nov 27, 2013
Letter accompanying subsequently filed items
Nov 27, 2013
Reply to communication from the Examining Division
Sep 13, 2013
Annex to the communication
Sep 13, 2013
Communication from the Examining Division
Sep 4, 2013
Examination started
Apr 19, 2012
(Electronic) Receipt
Apr 19, 2012
Amended claims filed after receipt of (European) search report
Apr 19, 2012
Amended claims with annotations
Apr 19, 2012
Amendments received before examination
Apr 19, 2012
Letter accompanying subsequently filed items
Oct 24, 2011
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Sep 21, 2011
Notification of forthcoming publication
Sep 7, 2011
Refund of fees
Jul 5, 2011
Communication regarding the transmission of the European search report
Jul 5, 2011
European search opinion
Jul 5, 2011
European search report
Jun 20, 2011
Priority document (electronically transmitted)
May 25, 2011
Deficiency in designation of inventor
May 25, 2011
Designation of inventor
May 25, 2011
Letter concerning the inventor
May 18, 2011
Priority search results copy provided by EPO
Apr 18, 2011
Abstract
Apr 18, 2011
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Apr 18, 2011
Claims
Apr 18, 2011
Description
Apr 18, 2011
Drawings
Apr 18, 2011
Request for grant of a European patent

EP2377831

IVOCLAR VIVADENT

Application Number: EP11162840A
Filing Date: Apr 18, 2011
Status: Opposition Procedure Closed
Publication Date: Apr 13, 2016
External Links: Slate, Register , Google Patents

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Lithium Silicate Glass Ceramic And Glass With Zro2 Content

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Dossier Documents

EP2377831