The weekly litigation news digest is live. Subscribe now
The patent EP3761671 was granted to GN Hearing on Aug 2, 2023. The application was filed on Mar 21, 2018 under application number EP20170594A. 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 | May 2, 2024 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2015289065 |
| OPPOSITION | EP2701145 |
| OPPOSITION | US2002041695 |
| OPPOSITION | US2009238385 |
| OPPOSITION | US2011069851 |
| OPPOSITION | US2013259239 |
| SEARCH | EP2884763 |
| SEARCH | EP3101919 |
| SEARCH | US2013259239 |
| SEARCH | WO2007128825 |
| SEARCH | WO2009034524 |
| SEARCH | WO2016112969 |
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
Get instant alerts for new documents
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Means of redress
OPPO
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 25, 2025
Nov 13, 2025
Sep 17, 2025
Sep 17, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Sep 10, 2025
Sep 2, 2025
Sep 2, 2025
Sep 2, 2025
Sep 2, 2025
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Nov 22, 2024
Sep 20, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Jun 3, 2024
Jun 3, 2024
Jun 3, 2024
May 28, 2024
May 28, 2024
May 28, 2024
May 27, 2024
May 23, 2024
May 17, 2024
May 17, 2024
May 16, 2024
May 16, 2024
May 16, 2024
May 8, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
Aug 16, 2023
Jul 6, 2023
Decision to grant a European patent
Search/Exam
Jun 26, 2023
(Electronic) Receipt
Search/Exam
Jun 26, 2023
Filing of the translations of the claims
Search/Exam
Jun 26, 2023
French translation of claims
Search/Exam
Jun 26, 2023
German translation of the claims
Search/Exam
Jun 26, 2023
Letter accompanying subsequently filed items
Search/Exam
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Intention to grant (signatures)
Search/Exam
Feb 27, 2023
Text intended for grant (clean copy)
Search/Exam
Feb 27, 2023
Feb 9, 2023
(Electronic) Receipt
Search/Exam
Feb 9, 2023
Amended claims with annotations
Search/Exam
Feb 9, 2023
Claims
Search/Exam
Feb 9, 2023
Letter accompanying subsequently filed items
Search/Exam
Feb 9, 2023
Nov 10, 2022
Oct 28, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Intention to grant (signatures)
Search/Exam
Oct 12, 2022
Text intended for grant (clean copy)
Search/Exam
Oct 12, 2022
Sep 27, 2022
Annex to the communication
Search/Exam
Sep 27, 2022
Consultation by telephone/in person
Search/Exam
Sep 27, 2022
Sep 26, 2022
Sep 26, 2022
Sep 23, 2022
(Electronic) Receipt
Search/Exam
Sep 23, 2022
Amended claims with annotations
Search/Exam
Sep 23, 2022
Claims
Search/Exam
Sep 23, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 23, 2022
Sep 19, 2022
(Electronic) Receipt
Search/Exam
Sep 19, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 13, 2022
Examination started
Search/Exam
Jul 5, 2021
(Electronic) Receipt
Search/Exam
Jul 5, 2021
Jul 5, 2021
Amended claims with annotations
Search/Exam
Jul 5, 2021
Jul 5, 2021
Amended description with annotations
Search/Exam
Jul 5, 2021
Amendments received before examination
Search/Exam
Jul 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2021
Document concerning representation
Search/Exam
Jan 15, 2021
Dec 9, 2020
Notification of forthcoming publication
Search/Exam
Oct 7, 2020
Refund of fees
Search/Exam
Oct 1, 2020
Oct 1, 2020
European search opinion
Search/Exam
Oct 1, 2020
European search report
Search/Exam
Oct 1, 2020
Information on Search Strategy
Search/Exam
Sep 18, 2020
Search started
Search/Exam
Aug 17, 2020
Notice on debiting of fees
Search/Exam
Jun 26, 2020
(Electronic) Receipt
Search/Exam
Jun 26, 2020
Claims
Search/Exam
Jun 26, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 26, 2020
Matter concerning the application
Search/Exam
Jun 15, 2020
Communication to designated inventor
Search/Exam
Jun 15, 2020
Communication to designated inventor
Search/Exam
Jun 15, 2020
Communication to designated inventor
Search/Exam
May 4, 2020
Invitation to file claims
Search/Exam
Apr 21, 2020
Abstract
Search/Exam
Apr 21, 2020
Apr 21, 2020
Description
Search/Exam
Apr 21, 2020
Designation of inventor
Search/Exam
Apr 21, 2020
Drawings
Search/Exam
Apr 21, 2020
Request for grant of a European patent
Search/Exam
Sep 27, 2018
Priority document
Search/Exam
May 22, 2018