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The patent EP3005731 was granted to Sonova on Jul 15, 2020. The application was filed on Jun 3, 2013 under application number EP13726234A. 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 |
|---|---|---|---|
| GN HEARING WIDEX OTICON | Dec 29, 2017 | AERA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1956589 |
| DESCRIPTION | US2007009122 |
| DESCRIPTION | US6041129 |
| DESCRIPTION | WO2004077090 |
| INTERNATIONAL-SEARCH-REPORT | US2009010442 |
| INTERNATIONAL-SEARCH-REPORT | WO03073790 |
| INTERNATIONAL-SEARCH-REPORT | WO2004021740 |
| OPPOSITION | US2009147966 |
| OPPOSITION | US2010260364 |
| OPPOSITION | US8116489 |
| OPPOSITION | WO0028784 |
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 18, 2020
Jun 18, 2020
Jun 12, 2020
Jun 3, 2020
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Apr 2, 2020
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Apr 1, 2020
Refund of fees
Search/Exam
Mar 24, 2020
Mar 24, 2020
Mar 24, 2020
Feb 18, 2020
Feb 11, 2020
(Electronic) Receipt
Appeal
Feb 11, 2020
Feb 11, 2020
Withdrawal of an appeal
Appeal
Dec 20, 2019
Dec 20, 2019
Dec 12, 2019
(Electronic) Receipt
Appeal
Dec 12, 2019
Dec 12, 2019
Notice of appeal
Appeal
Oct 31, 2019
Oct 9, 2019
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Oct 2, 2019
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Means of redress
OPPO
Oct 2, 2019
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Claims
OPPO
Jun 18, 2019
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Mar 30, 2017
Mar 2, 2017
Decision to grant a European patent
Search/Exam
Feb 16, 2017
(Electronic) Receipt
Search/Exam
Feb 16, 2017
Filing of the translations of the claims
Search/Exam
Feb 16, 2017
French translation of claims
Search/Exam
Feb 16, 2017
German translation of the claims
Search/Exam
Feb 16, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 2, 2016
Nov 2, 2016
Nov 2, 2016
Intention to grant (signatures)
Search/Exam
Nov 2, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 2, 2016
Sep 26, 2016
Examination started
Search/Exam
Aug 2, 2016
(Electronic) Receipt
Search/Exam
Aug 2, 2016
Aug 2, 2016
Amended claims with annotations
Search/Exam
Aug 2, 2016
Aug 2, 2016
Amendments received before examination
Search/Exam
Aug 2, 2016
Letter accompanying subsequently filed items
Search/Exam
Mar 16, 2016
Jan 28, 2016
Jan 26, 2016
Communication to designated inventor
Search/Exam
Jan 26, 2016
Communication to designated inventor
Search/Exam
Jan 4, 2016
Dec 28, 2015
(Electronic) Receipt
Search/Exam
Dec 28, 2015
Request for entry into the European phase
Search/Exam
Oct 16, 2015
Information on entry into European phase
Search/Exam
Aug 12, 2015
Notification of the recording of a change
Search/Exam
Dec 11, 2014
Copy of the international search report
Search/Exam
Dec 11, 2014
Published international application - A1
Search/Exam
Mar 27, 2014
Mar 27, 2014
Mar 27, 2014
Jan 2, 2014
Jan 2, 2014
Jun 3, 2013
(Electronic) Receipt
PCTRO
Jun 3, 2013
Abstract
PCTRO
Jun 3, 2013
Claims
PCTRO
Jun 3, 2013
Description
PCTRO
Jun 3, 2013
Drawings
PCTRO