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The patent EP3453686 was granted to Ivoclar Vivadent on Dec 30, 2020. The application was filed on Apr 18, 2011 under application number EP18202123A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 | Opposition Status |
|---|---|---|---|
| DENTSPLY SIRONA | Sep 30, 2021 | FINNEGAN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE10031431 |
| DESCRIPTION | DE19647739 |
| DESCRIPTION | DE19725552 |
| DESCRIPTION | DE4314817 |
| DESCRIPTION | DE4423793 |
| DESCRIPTION | DE4423794 |
| DESCRIPTION | DE4428839 |
| DESCRIPTION | EP1505041 |
| DESCRIPTION | EP1688398 |
| DESCRIPTION | WO2008106958 |
| SEARCH | DE102009060274 |
| SEARCH | DE19750794 |
| SEARCH | EP0690031 |
| SEARCH | GB2284655 |
| SEARCH | US6593257 |
| SEARCH | WO2011076422 |
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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Advice of delivery
Appeal
Oct 10, 2024
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Aug 26, 2024
(Electronic) Receipt
Appeal
Aug 26, 2024
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Reply to appeal
Appeal
Aug 26, 2024
Reply to appeal
Appeal
Apr 26, 2024
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Apr 22, 2024
(Electronic) Receipt
Appeal
Apr 22, 2024
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(Electronic) Receipt
Appeal
Feb 22, 2024
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Notice of appeal
Appeal
Feb 21, 2024
(Electronic) Receipt
Appeal
Feb 21, 2024
Feb 21, 2024
Notice of appeal
Appeal
Jan 9, 2024
Jan 3, 2024
Dec 22, 2023
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Means of redress
OPPO
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Authorisation
OPPO
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Jan 18, 2021
Dec 3, 2020
Decision to grant a European patent
Search/Exam
Nov 18, 2020
(Electronic) Receipt
Search/Exam
Nov 18, 2020
English translation of the claims
Search/Exam
Nov 18, 2020
Filing of the translations of the claims
Search/Exam
Nov 18, 2020
French translation of claims
Search/Exam
Nov 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 13, 2020
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Nov 13, 2020
Intention to grant (signatures)
Search/Exam
Nov 13, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 13, 2020
Oct 23, 2020
Examination started
Search/Exam
Sep 13, 2019
(Electronic) Receipt
Search/Exam
Sep 13, 2019
Sep 13, 2019
Amended claims with annotations
Search/Exam
Sep 13, 2019
Amendments received before examination
Search/Exam
Sep 13, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 18, 2019
Feb 13, 2019
Notification of forthcoming publication
Search/Exam
Jan 23, 2019
Refund of fees
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 14, 2018
Communication to designated inventor
Search/Exam
Dec 7, 2018
Dec 7, 2018
European search opinion
Search/Exam
Dec 7, 2018
European search report
Search/Exam
Dec 7, 2018
Information on Search Strategy
Search/Exam
Nov 29, 2018
Search started
Search/Exam
Nov 5, 2018
Priority search results copy provided by EPO
Search/Exam
Oct 23, 2018
Abstract
Search/Exam
Oct 23, 2018
Oct 23, 2018
Claims
Search/Exam
Oct 23, 2018
Description
Search/Exam
Oct 23, 2018
Designation of inventor
Search/Exam
Oct 23, 2018
Drawings
Search/Exam
Oct 23, 2018
Request for grant of a European patent
Search/Exam
Jun 20, 2011