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The patent EP4085505 was granted to Sonova Consumer Hearing on Nov 29, 2023. The application was filed on Dec 17, 2020 under application number EP20833804A. 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 | Aug 29, 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 | US9502913 |
| INTERNATIONAL-SEARCH-REPORT | US2017288420 |
| INTERNATIONAL-SEARCH-REPORT | US5497067 |
| INTERNATIONAL-SEARCH-REPORT | WO2017205575 |
| OPPOSITION | US2019288537 |
| OPPOSITION | US5497067 |
| OPPOSITION | WO2017205575 |
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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Means of redress
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Decision to grant a European patent
Search/Exam
Oct 25, 2023
(Electronic) Receipt
Search/Exam
Oct 25, 2023
Filing of the translations of the claims
Search/Exam
Oct 25, 2023
French translation of claims
Search/Exam
Oct 25, 2023
German translation of the claims
Search/Exam
Oct 25, 2023
Letter accompanying subsequently filed items
Search/Exam
Sep 7, 2023
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Intention to grant (signatures)
Search/Exam
Sep 7, 2023
Text intended for grant (clean copy)
Search/Exam
Sep 7, 2023
Jul 19, 2023
Examination started
Search/Exam
Nov 22, 2022
(Electronic) Receipt
Search/Exam
Nov 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 22, 2022
Reply to Written Opinion prepared by the EPO
Search/Exam
Oct 12, 2022
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(Electronic) Receipt
Search/Exam
Jul 14, 2022
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Amended claims with annotations
Search/Exam
Jul 14, 2022
Priority search results
Search/Exam
Jul 14, 2022
Request for entry into the European phase
Search/Exam
May 13, 2022
Information on entry into European phase
Search/Exam
Apr 1, 2022
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Notification of the recording of a change
Search/Exam
Mar 12, 2022
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Notification of the recording of a change
Search/Exam
Mar 10, 2022
(Electronic) Receipt
PCTRO
Mar 10, 2022
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Notification of the recording of a change
Search/Exam
Feb 3, 2022
(Electronic) Receipt
PCTRO
Feb 3, 2022
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Jul 26, 2021
Jul 8, 2021
Copy of the international search report
Search/Exam
Jul 8, 2021
Published international application - A1
Search/Exam
Mar 9, 2021
ISR: cited documents
PCTISA
Mar 9, 2021
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Feb 19, 2021
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Dec 17, 2020
(Electronic) Receipt
PCTRO
Dec 17, 2020
Abstract
PCTRO
Dec 17, 2020
Claims
PCTRO
Dec 17, 2020
Description
PCTRO
Dec 17, 2020
Dec 17, 2020
Drawings
PCTRO
Dec 17, 2020