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The patent EP3506656 was granted to GN Hearing on Feb 22, 2023. The application was filed on Dec 29, 2017 under application number EP17211043A. 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 |
|---|---|---|---|
| OTICON | Nov 22, 2023 | COHAUSZ & FLORACK | ADMISSIBLE |
| SIVANTOS PTE | Nov 21, 2023 | FDST PATENTANWALTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2008143610 |
| OPPOSITION | EP1465457 |
| OPPOSITION | EP2076065 |
| OPPOSITION | EP2546926 |
| OPPOSITION | EP2680366 |
| OPPOSITION | EP3110175 |
| OPPOSITION | EP3148219 |
| OPPOSITION | US2008143610 |
| OPPOSITION | US2010054513 |
| OPPOSITION | US2012087506 |
| OPPOSITION | US2014071004 |
| OPPOSITION | US2017026762 |
| OPPOSITION | US3265819 |
| OPPOSITION | US3491203 |
| OPPOSITION | US7623077 |
| OPPOSITION | US8078124 |
| OPPOSITION | WO2005081583 |
| OPPOSITION | WO2014043345 |
| OPPOSITION | WO2015127972 |
| OPPOSITION | WO2017153020 |
| SEARCH | EP3110174 |
| SEARCH | US2016205461 |
| SEARCH | WO2014043345 |
| SEARCH | WO2015127972 |
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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(Electronic) Receipt
Appeal
Oct 27, 2025
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Reply to appeal
OPPO
Oct 27, 2025
Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Apr 11, 2025
Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Jan 5, 2023
(Electronic) Receipt
Search/Exam
Jan 5, 2023
Filing of the translations of the claims
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Jan 5, 2023
French translation of claims
Search/Exam
Jan 5, 2023
German translation of the claims
Search/Exam
Jan 5, 2023
Letter accompanying subsequently filed items
Search/Exam
Nov 10, 2022
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Intention to grant (signatures)
Search/Exam
Sep 7, 2022
Text intended for grant (clean copy)
Search/Exam
Sep 7, 2022
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(Electronic) Receipt
Search/Exam
Jul 22, 2022
Amended claims with annotations
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Jul 22, 2022
Claims
Search/Exam
Jul 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2022
Jun 23, 2022
(Electronic) Receipt
Search/Exam
Jun 23, 2022
Annexes in respect of a client data request
Search/Exam
Jun 23, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 23, 2022
Mar 28, 2022
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Mar 28, 2022
Intention to grant (signatures)
Search/Exam
Mar 28, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 28, 2022
Jun 7, 2021
Annexes in respect of a client data request
Search/Exam
Jun 7, 2021
Annexes in respect of a client data request
Search/Exam
Apr 21, 2021
(Electronic) Receipt
Search/Exam
Apr 21, 2021
Amended claims with annotations
Search/Exam
Apr 21, 2021
Claims
Search/Exam
Apr 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 21, 2021
Feb 19, 2021
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(Electronic) Receipt
Search/Exam
Feb 15, 2021
Oct 22, 2020
Annex to the communication
Search/Exam
Oct 22, 2020
Communication from the Examining Division
Search/Exam
Oct 15, 2020
Examination started
Search/Exam
Dec 20, 2019
(Electronic) Receipt
Search/Exam
Dec 20, 2019
Dec 20, 2019
Amended claims with annotations
Search/Exam
Dec 20, 2019
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Amended description with annotations
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Dec 20, 2019
Amendments received before examination
Search/Exam
Dec 20, 2019
Letter accompanying subsequently filed items
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Jul 8, 2019
Jun 5, 2019
Notification of forthcoming publication
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Jul 2, 2018
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European search opinion
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Jul 2, 2018
European search report
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Jul 2, 2018
Information on Search Strategy
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Jun 5, 2018
Search started
Search/Exam
Feb 21, 2018
Communication to designated inventor
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Feb 21, 2018
Communication to designated inventor
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Feb 21, 2018
Communication to designated inventor
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Dec 29, 2017
Abstract
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Dec 29, 2017
Dec 29, 2017
Claims
Search/Exam
Dec 29, 2017
Description
Search/Exam
Dec 29, 2017
Designation of inventor
Search/Exam
Dec 29, 2017
Drawings
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Dec 29, 2017
Request for grant of a European patent
Search/Exam