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The patent EP3698431 was granted to Widex on Jul 6, 2022. The application was filed on Sep 20, 2018 under application number EP18773749A. 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 | Apr 6, 2023 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2016173998 |
| INTERNATIONAL-SEARCH-REPORT | EP3076481 |
| INTERNATIONAL-SEARCH-REPORT | US2015296312 |
| INTERNATIONAL-SEARCH-REPORT | US2016050501 |
| INTERNATIONAL-SEARCH-REPORT | US2017064467 |
| OPPOSITION | US2005099341 |
| OPPOSITION | US2015281859 |
| OPPOSITION | US2015296312 |
| OPPOSITION | US2016173998 |
| OPPOSITION | US2016241973 |
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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Sep 24, 2025
Aug 19, 2025
Aug 18, 2025
Aug 11, 2025
Aug 4, 2025
(Electronic) Receipt
Appeal
Aug 4, 2025
Aug 4, 2025
Reply to appeal
Appeal
May 27, 2025
May 27, 2025
May 27, 2025
Apr 2, 2025
Mar 28, 2025
(Electronic) Receipt
Appeal
Mar 28, 2025
Mar 28, 2025
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Jan 23, 2025
(Electronic) Receipt
Appeal
Jan 23, 2025
Jan 23, 2025
Notice of appeal
Appeal
Nov 28, 2024
Nov 28, 2024
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Means of redress
OPPO
Nov 28, 2024
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Jul 19, 2022
Jun 10, 2022
Decision to grant a European patent
Search/Exam
May 25, 2022
(Electronic) Receipt
Search/Exam
May 25, 2022
Filing of the translations of the claims
Search/Exam
May 25, 2022
French translation of claims
Search/Exam
May 25, 2022
German translation of the claims
Search/Exam
May 25, 2022
Letter accompanying subsequently filed items
Search/Exam
May 4, 2022
May 4, 2022
May 4, 2022
Intention to grant (signatures)
Search/Exam
May 4, 2022
Text intended for grant (clean copy)
Search/Exam
May 4, 2022
Sep 9, 2021
(Electronic) Receipt
Search/Exam
Sep 9, 2021
Amended claims with annotations
Search/Exam
Sep 9, 2021
Amended description with annotations
Search/Exam
Sep 9, 2021
Claims
Search/Exam
Sep 9, 2021
Description
Search/Exam
Sep 9, 2021
Sep 9, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 9, 2021
Sep 6, 2021
(Electronic) Receipt
Search/Exam
Sep 6, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 6, 2021
May 10, 2021
Annex to the communication
Search/Exam
May 10, 2021
Communication from the Examining Division
Search/Exam
May 3, 2021
Examination started
Search/Exam
Jul 29, 2020
Jun 24, 2020
Communication to designated inventor
Search/Exam
Jun 17, 2020
(Electronic) Receipt
Search/Exam
Jun 17, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 17, 2020
Letter concerning the inventor
Search/Exam
Jun 9, 2020
Deficiencies in designation of inventor
Search/Exam
May 29, 2020
May 28, 2020
May 27, 2020
Communication to designated inventor
Search/Exam
May 27, 2020
Communication to designated inventor
Search/Exam
Mar 11, 2020
Information regarding early processing
Search/Exam
Mar 4, 2020
(Electronic) Receipt
Search/Exam
Mar 4, 2020
Mar 4, 2020
Amended claims with annotations
Search/Exam
Mar 4, 2020
Mar 4, 2020
Amended description with annotations
Search/Exam
Mar 4, 2020
Amendments received before examination
Search/Exam
Mar 4, 2020
Request for entry into the European phase
Search/Exam
Feb 28, 2020
Information on entry into European phase
Search/Exam
May 20, 2019
May 20, 2019
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Apr 25, 2019
Copy of the international search report
Search/Exam
Apr 25, 2019
Published international application - A1
Search/Exam
Jan 4, 2019
Jan 4, 2019
Jan 4, 2019
Nov 5, 2018
Oct 8, 2018
Oct 8, 2018
Sep 20, 2018
(Electronic) Receipt
PCTRO
Sep 20, 2018
Abstract
PCTRO
Sep 20, 2018
Claims
PCTRO
Sep 20, 2018
Description
PCTRO
Sep 20, 2018
Sep 20, 2018
Drawings
PCTRO
Sep 20, 2018