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The patent EP3725093 was granted to GN Audio on Jul 2, 2025. The application was filed on Dec 7, 2018 under application number EP18819057A. 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 |
|---|---|---|---|
| EPOS GROUP | Oct 18, 2023 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2014172421 |
| INTERNATIONAL-SEARCH-REPORT | US2014288927 |
| OPPOSITION | US2014172421 |
| OPPOSITION | US2014288927 |
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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Jun 5, 2025
Jun 5, 2025
May 23, 2025
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Refund of fees
Appeal
Apr 23, 2025
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Apr 23, 2025
Apr 15, 2025
(Electronic) Receipt
Appeal
Apr 15, 2025
Apr 15, 2025
Withdrawal of an appeal
Appeal
Apr 3, 2025
Apr 3, 2025
Mar 28, 2025
(Electronic) Receipt
Appeal
Mar 28, 2025
Notice of appeal
Appeal
Mar 28, 2025
Notice of appeal
Appeal
Jan 28, 2025
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Means of redress
OPPO
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Decision to grant a European patent
Search/Exam
Nov 3, 2022
(Electronic) Receipt
Search/Exam
Nov 3, 2022
Filing of the translations of the claims
Search/Exam
Nov 3, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 27, 2022
Sep 27, 2022
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Text intended for grant (clean copy)
Search/Exam
Sep 27, 2022
Sep 5, 2022
(Electronic) Receipt
Search/Exam
Sep 5, 2022
Amended claims with annotations
Search/Exam
Sep 5, 2022
Claims
Search/Exam
Sep 5, 2022
French translation of claims
Search/Exam
Sep 5, 2022
German translation of the claims
Search/Exam
Sep 5, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 5, 2022
Jun 14, 2022
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Intention to grant (signatures)
Search/Exam
Jun 14, 2022
Text intended for grant (clean copy)
Search/Exam
Jun 14, 2022
May 20, 2022
Examination started
Search/Exam
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
Dec 11, 2020
Dec 9, 2020
(Electronic) Receipt
Search/Exam
Dec 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 9, 2020
Letter concerning the priority
Search/Exam
Nov 13, 2020
Invitation to file priority document
Search/Exam
Sep 23, 2020
Aug 6, 2020
Jul 20, 2020
Communication to designated inventor
Search/Exam
Jul 20, 2020
Communication to designated inventor
Search/Exam
Jun 29, 2020
Jun 25, 2020
(Electronic) Receipt
Search/Exam
Jun 25, 2020
Jun 25, 2020
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Annex
Search/Exam
Jun 25, 2020
Jun 25, 2020
Request for entry into the European phase
Search/Exam
Apr 24, 2020
Information on entry into European phase
Search/Exam
Jun 20, 2019
Copy of the international search report
Search/Exam
Jun 20, 2019
Published international application - A1
Search/Exam
Mar 18, 2019
ISR: cited documents
PCTISA
Mar 18, 2019
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Jan 3, 2019
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 7, 2018
(Electronic) Receipt
PCTRO
Dec 7, 2018
Abstract
PCTRO
Dec 7, 2018
Claims
PCTRO
Dec 7, 2018
Description
PCTRO
Dec 7, 2018
Dec 7, 2018
Drawings
PCTRO
Dec 7, 2018