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The patent EP3744381 was granted to Dentsply IH on Feb 19, 2025. The application was filed on Dec 29, 2014 under application number EP20174188A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| HOLLISTER INCORPORATED | Nov 22, 2022 | FRKELLY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | AU503664B |
| OPPOSITION | EP0384476 |
| OPPOSITION | EP1149598 |
| OPPOSITION | US2012191073 |
| OPPOSITION | US7717902 |
| OPPOSITION | WO2014022227 |
| SEARCH | AU503664B |
| SEARCH | US2012158025 |
| SEARCH | WO2005094665 |
| SEARCH | WO2006069396 |
| SEARCH | WO2014022227 |
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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Letter accompanying subsequently filed items
Search/Exam
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Decision to grant a European patent
Search/Exam
Jan 18, 2022
(Electronic) Receipt
Search/Exam
Jan 18, 2022
Filing of the translations of the claims
Search/Exam
Jan 18, 2022
French translation of claims
Search/Exam
Jan 18, 2022
German translation of the claims
Search/Exam
Nov 22, 2021
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Annexes in respect of a client data request
Search/Exam
Nov 11, 2021
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Oct 5, 2021
Text intended for grant (clean copy)
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Examination started
Search/Exam
Jun 10, 2021
(Electronic) Receipt
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Jun 10, 2021
Letter concerning fees and payments
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Dec 21, 2020
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Refund of fees
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European search opinion
Search/Exam
Nov 17, 2020
European search report
Search/Exam
Nov 17, 2020
Information on Search Strategy
Search/Exam
Nov 4, 2020
Notification of forthcoming publication
Search/Exam
Oct 26, 2020
Search started
Search/Exam
Sep 11, 2020
Communication to designated inventor
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Sep 3, 2020
(Electronic) Receipt
Search/Exam
Sep 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 3, 2020
Letter concerning the inventor
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Letter which had not been notified
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Communication to designated inventor
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Communication to designated inventor
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Abstract
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Claims
Search/Exam
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Description
Search/Exam
May 12, 2020
Designation of inventor
Search/Exam
May 12, 2020
Drawings
Search/Exam
May 12, 2020
Previously filed application
Search/Exam
May 12, 2020
Request for grant of a European patent
Search/Exam