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The patent EP3113515 was granted to GN Hearing on Apr 21, 2021. The application was filed on Jul 2, 2015 under application number EP15175138A. The patent is currently recorded with a legal status of "Revoked".

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 | Jan 21, 2022 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP2760225 |
| OPPOSITION | US2010016922 |
| OPPOSITION | US2012140962 |
| OPPOSITION | US6556686 |
| OPPOSITION | WO2010111479 |
| OPPOSITION | WO2011159948 |
| SEARCH | DE10200796 |
| SEARCH | US2012140962 |
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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Oct 20, 2025
Oct 15, 2025
Oct 15, 2025
Oct 15, 2025
Sep 30, 2025
(Electronic) Receipt
Appeal
Sep 30, 2025
Sep 30, 2025
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Sep 23, 2025
(Electronic) Receipt
Appeal
Sep 23, 2025
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May 23, 2025
(Electronic) Receipt
Appeal
May 23, 2025
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May 23, 2025
May 23, 2025
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May 23, 2025
May 23, 2025
May 15, 2025
May 12, 2025
(Electronic) Receipt
Appeal
May 12, 2025
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Jan 14, 2025
(Electronic) Receipt
Appeal
Jan 14, 2025
Jan 14, 2025
Dec 16, 2024
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Dec 11, 2024
Feb 28, 2024
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(Electronic) Receipt
Appeal
Feb 23, 2024
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Feb 23, 2024
Reply to appeal
Appeal
Oct 13, 2023
Oct 9, 2023
(Electronic) Receipt
Appeal
Oct 9, 2023
Oct 9, 2023
Aug 16, 2023
Aug 16, 2023
Aug 9, 2023
(Electronic) Receipt
Appeal
Aug 9, 2023
Aug 9, 2023
Notice of appeal
Appeal
Jun 6, 2023
May 30, 2023
May 30, 2023
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May 30, 2023
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May 30, 2023
Means of redress
OPPO
May 30, 2023
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Jun 9, 2021
May 25, 2021
Letter which had not been notified
Search/Exam
May 4, 2021
Apr 1, 2021
Document concerning representation
Search/Exam
Mar 25, 2021
Decision to grant a European patent
Search/Exam
Mar 18, 2021
Change to the inventor details
Search/Exam
Mar 15, 2021
(Electronic) Receipt
Search/Exam
Mar 15, 2021
Filing of the translations of the claims
Search/Exam
Mar 15, 2021
French translation of claims
Search/Exam
Mar 15, 2021
German translation of the claims
Search/Exam
Mar 15, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 1, 2020
Dec 1, 2020
Dec 1, 2020
Intention to grant (signatures)
Search/Exam
Dec 1, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 1, 2020
Nov 16, 2020
(Electronic) Receipt
Search/Exam
Nov 16, 2020
Amended claims with annotations
Search/Exam
Nov 16, 2020
Claims
Search/Exam
Nov 16, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 16, 2020
Jul 9, 2020
Jul 9, 2020
Jul 9, 2020
Intention to grant (signatures)
Search/Exam
Jul 9, 2020
Text intended for grant (clean copy)
Search/Exam
Jul 9, 2020
Jun 8, 2020
Examination started
Search/Exam
Jan 12, 2018
Jan 8, 2018
Oct 16, 2017
Oct 10, 2017
(Electronic) Receipt
Search/Exam
Oct 10, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 10, 2017
Oct 10, 2017
Sep 26, 2017
Sep 20, 2017
Jul 4, 2017
(Electronic) Receipt
Search/Exam
Jul 4, 2017
Annexes in respect of a client data request
Search/Exam
Jul 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 4, 2017
Reply to Written Opinion prepared by the EPO
Search/Exam
Jan 10, 2017
Dec 7, 2016
Notification of forthcoming publication
Search/Exam
Oct 19, 2016
Oct 19, 2016
Oct 14, 2016
(Electronic) Receipt
Search/Exam
Oct 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 14, 2016
Jan 4, 2016
Jan 4, 2016
European search opinion
Search/Exam
Jan 4, 2016
European search report
Search/Exam
Jan 4, 2016
Information on Search Strategy
Search/Exam
Dec 7, 2015
Search started
Search/Exam
Aug 25, 2015
Communication to designated inventor
Search/Exam
Aug 25, 2015
Communication to designated inventor
Search/Exam
Jul 2, 2015
Abstract
Search/Exam
Jul 2, 2015
Jul 2, 2015
Claims
Search/Exam
Jul 2, 2015
Description
Search/Exam
Jul 2, 2015
Designation of inventor
Search/Exam
Jul 2, 2015
Drawings
Search/Exam
Jul 2, 2015
Request for grant of a European patent
Search/Exam