Dental Mill Blank With Intermediate Color Layer At 30% Position

Patent No. EP3326574 (titled "Dental Mill Blank With Intermediate Color Layer At 30% Position") was filed by Shofu on Jun 20, 2017. The application was issued on Mar 12, 2025.

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
IVOCLAR VIVADENT	Jul 16, 2020	UEXKULL & STOLBERG

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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Feb 13, 2025
Decision to maintain the European patent in amended form
Feb 13, 2025
Decision to maintain the European patent in amended form
Nov 26, 2024
(Electronic) Receipt
Nov 26, 2024
Claims
Nov 26, 2024
Claims
Nov 26, 2024
Filing of the translation of the amended claims
Nov 26, 2024
French translation of claims
Nov 26, 2024
German translation of the claims
Nov 26, 2024
Letter accompanying subsequently filed items
Sep 5, 2024
Communication of bibliographic data
Sep 5, 2024
Communication to opponent concerning maintenance
Sep 5, 2024
Communication with request to file translations
Sep 2, 2024
Maintenance of the patent with the documents specified in the final decision
Aug 23, 2024
Refund of fees
Aug 21, 2024
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Aug 21, 2024
F3324 Closure of the appeal proceedings: withdrawal of the appeal/ application/ opposition
Aug 14, 2024
F3345 Forwarding of submissions to parties
Aug 12, 2024
Composition of the board (T)
Aug 8, 2024
(Electronic) Receipt
Aug 8, 2024
Letter accompanying subsequently filed items
Aug 8, 2024
Withdrawal of an appeal
Apr 16, 2024
F3345 Forwarding of submissions to parties
Apr 11, 2024
(Electronic) Receipt
Apr 11, 2024
Letter accompanying subsequently filed items
Apr 11, 2024
Reply to appeal
Feb 7, 2024
Refund of fees
Dec 11, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Dec 11, 2023
F3345 Forwarding of submissions to parties
Dec 1, 2023
(Electronic) Receipt
Dec 1, 2023
(Electronic) Receipt
Dec 1, 2023
Letter accompanying subsequently filed items
Dec 1, 2023
Letter accompanying subsequently filed items
Dec 1, 2023
Statement of grounds of appeal
Dec 1, 2023
Withdrawal of an appeal
Oct 11, 2023
F3204 Communication of the file number to the parties
Oct 11, 2023
F3204 Communication of the file number to the parties
Oct 4, 2023
(Electronic) Receipt
Oct 4, 2023
(Electronic) Receipt
Oct 4, 2023
Letter accompanying subsequently filed items
Oct 4, 2023
Letter accompanying subsequently filed items
Oct 4, 2023
Notice of appeal
Oct 4, 2023
Notice of appeal
Jul 24, 2023
Annex to the communication - opposition
Jul 24, 2023
Decision of the Opposition Division and instruction
Jul 24, 2023
Druckexemplar in opposition procedure
Jul 24, 2023
Grounds for the decision (Annex) - opposition
Jul 24, 2023
Interlocutory decision in opposition proceedings
Jul 24, 2023
Interlocutory decision in opposition proceedings
Jul 24, 2023
Means of redress
Jul 24, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jul 24, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jul 24, 2023
Provision of a copy of the minutes - opposition procedure
Jul 24, 2023
Provision of a copy of the minutes - opposition procedure
Jul 24, 2023
Scanned annex to a communication - opposition procedure
Jul 24, 2023
Scanned annex to a communication - opposition procedure
Jul 24, 2023
Scanned annex to a communication - opposition procedure
Jul 24, 2023
Scanned annex to a communication - opposition procedure
Jul 24, 2023
Transmittal of decision / summons - opposition
Jul 24, 2023
Transmittal of decision / summons - opposition
Jun 13, 2023
Information about the result of oral proceedings
Feb 17, 2023
Brief communication - Opposition proceedings
Feb 13, 2023
(Electronic) Receipt
Feb 13, 2023
(Electronic) Receipt
Feb 13, 2023
Letter accompanying subsequently filed items
Feb 13, 2023
Written submission in preparation to/during oral proceedings
Feb 7, 2023
Brief communication - Opposition proceedings
Feb 2, 2023
(Electronic) Receipt
Feb 2, 2023
Auxiliary request during Opposition procedure
Feb 2, 2023
Auxiliary request during Opposition procedure - 07
Feb 2, 2023
Letter accompanying subsequently filed items
Feb 2, 2023
Written submission in preparation to/during oral proceedings
Dec 5, 2022
Notification concerning the date of oral proceedings
Dec 5, 2022
Notification concerning the date of oral proceedings
Jun 28, 2022
Annex to the communication - opposition
Jun 28, 2022
Scanned annex to a communication - opposition procedure
Jun 28, 2022
Summons to attend oral proceedings
Jun 28, 2022
Summons to attend oral proceedings
Jun 28, 2022
Transmittal of decision / summons - opposition
Jun 28, 2022
Transmittal of decision / summons - opposition
Mar 17, 2022
Enlargement of the examining/opposition division
Dec 11, 2020
Brief communication - Opposition proceedings
Dec 7, 2020
(Electronic) Receipt
Dec 7, 2020
Any annexes (other than citation) to an opposition letter
Dec 7, 2020
Auxiliary request during Opposition procedure
Dec 7, 2020
Auxiliary request during Opposition procedure
Dec 7, 2020
Auxiliary request during Opposition procedure
Dec 7, 2020
Auxiliary request during Opposition procedure
Dec 7, 2020
Auxiliary request during Opposition procedure
Dec 7, 2020
Auxiliary request during Opposition procedure
Dec 7, 2020
Auxiliary request during Opposition procedure
Dec 7, 2020
Auxiliary request during Opposition procedure - 01
Dec 7, 2020
Auxiliary request during Opposition procedure - 02
Dec 7, 2020
Auxiliary request during Opposition procedure - 03
Dec 7, 2020
Auxiliary request during Opposition procedure - 04
Dec 7, 2020
Auxiliary request during Opposition procedure - 05
Dec 7, 2020
Auxiliary request during Opposition procedure - 06
Dec 7, 2020
Auxiliary request during Opposition procedure - 07
Dec 7, 2020
Letter accompanying subsequently filed items
Dec 7, 2020
Reply of the patent proprietor to the notice(s) of opposition
Jul 28, 2020
Communication of a notice of opposition and request to file observations
Jul 28, 2020
Notice of further oppositions to opponent(s)
Jul 24, 2020
Scanned annex to a communication - opposition procedure
Jul 23, 2020
Scanned annex to a communication - opposition procedure
Jul 22, 2020
Communication of a notice of opposition - first information to patent proprietor
Jul 16, 2020
(Electronic) Receipt
Jul 16, 2020
Citation in opposition procedure - 001
Jul 16, 2020
Citation in opposition procedure - 001
Jul 16, 2020
Citation in opposition procedure - 002
Jul 16, 2020
Citation in opposition procedure - 003
Jul 16, 2020
Citation in opposition procedure - 003
Jul 16, 2020
Citation in opposition procedure - 004
Jul 16, 2020
Citation in opposition procedure - 005
Jul 16, 2020
Citation in opposition procedure - 006
Jul 16, 2020
Citation in opposition procedure - 006
Jul 16, 2020
Citation in opposition procedure - 007
Jul 16, 2020
Citation in opposition procedure - 008
Jul 16, 2020
Citation in opposition procedure - 009
Jul 16, 2020
Citation in opposition procedure - 010
Jul 16, 2020
Citation in opposition procedure - 011
Jul 16, 2020
Consolidated list of cited opposition documents
Jul 16, 2020
Notice of opposition
Jul 16, 2020
Notice of opposition
Oct 28, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 19, 2019
Decision to grant a European patent
Sep 3, 2019
(Electronic) Receipt
Sep 3, 2019
Filing of the translations of the claims
Sep 3, 2019
French translation of claims
Sep 3, 2019
German translation of the claims
Sep 3, 2019
Letter accompanying subsequently filed items
Apr 23, 2019
Bibliographic data of the European patent application
Apr 23, 2019
Communication about intention to grant a European patent
Apr 23, 2019
Intention to grant (signatures)
Apr 23, 2019
Text intended for grant (clean copy)
Apr 23, 2019
Text intended for grant (version for approval)
Mar 19, 2019
Examination started
Nov 30, 2018
(Electronic) Receipt
Nov 30, 2018
Amended claims filed after receipt of (European) search report
Nov 30, 2018
Amended claims with annotations
Nov 30, 2018
Amended description filed after receipt of (European) search report
Nov 30, 2018
Amended description with annotations
Nov 30, 2018
Amendments received before examination
Nov 30, 2018
Letter accompanying subsequently filed items
Jun 5, 2018
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
May 3, 2018
Notification of forthcoming publication
Feb 20, 2018
Communication regarding the transmission of the European search report
Feb 20, 2018
European search opinion
Feb 20, 2018
European search report
Feb 20, 2018
Information on Search Strategy
Feb 2, 2018
Search started
Sep 12, 2017
Communication to designated inventor
Sep 12, 2017
Communication to designated inventor
Aug 29, 2017
Confirmation of receipt of (electronically) transmitted priority document
Aug 22, 2017
Priority document (electronically transmitted)
Aug 21, 2017
(Electronic) Receipt
Aug 21, 2017
Abstract
Aug 21, 2017
Claims
Aug 21, 2017
Description
Aug 21, 2017
Drawings
Aug 21, 2017
Letter accompanying subsequently filed items
Aug 21, 2017
Matter concerning the application
Jun 20, 2017
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Jun 20, 2017
Designation of inventor
Jun 20, 2017
Request for grant of a European patent
Jun 20, 2017
Specification filed by fax and/or in non-official language

EP3326574

SHOFU

Application Number: EP17176879A
Filing Date: Jun 20, 2017
Status: Patent Maintained As Amended; Feb 7, 2025
Publication Date: Mar 12, 2025
External Links: Slate, Register , Google Patents

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Dental Mill Blank With Intermediate Color Layer At 30% Position

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Dossier Documents

EP3326574