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The patent EP3221807 was granted to Widex on Jul 29, 2020. The application was filed on Nov 20, 2014 under application number EP14802024A. The patent is currently recorded with a legal status of "Revoked".

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 29, 2021 | COHAUSZ & FLORACK | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2014094866 |
| INTERNATIONAL-SEARCH-REPORT | EP1252799 |
| INTERNATIONAL-SEARCH-REPORT | EP2760225 |
| INTERNATIONAL-SEARCH-REPORT | EP2799985 |
| INTERNATIONAL-SEARCH-REPORT | US2011176686 |
| INTERNATIONAL-SEARCH-REPORT | US2011257994 |
| INTERNATIONAL-SEARCH-REPORT | US2012183164 |
| INTERNATIONAL-SEARCH-REPORT | WO2014094859 |
| OPPOSITION | EP1252799 |
| OPPOSITION | EP2760225 |
| OPPOSITION | EP2799985 |
| OPPOSITION | US2011176686 |
| OPPOSITION | US2011257994 |
| OPPOSITION | US2012183164 |
| OPPOSITION | US2013177188 |
| OPPOSITION | WO2014094859 |
| OPPOSITION | WO2014094866 |
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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Dec 11, 2024
Refund of fees
Appeal
Dec 10, 2024
Dec 10, 2024
Claims
Appeal
Dec 10, 2024
Dec 10, 2024
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Nov 28, 2024
Nov 27, 2024
(Electronic) Receipt
Appeal
Nov 27, 2024
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(Electronic) Receipt
Appeal
Nov 5, 2024
(Electronic) Receipt
Appeal
Nov 5, 2024
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(Electronic) Receipt
Appeal
Jun 21, 2024
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(Electronic) Receipt
Appeal
Feb 5, 2024
Feb 5, 2024
Reply to appeal
Appeal
Oct 18, 2023
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(Electronic) Receipt
Appeal
Sep 15, 2023
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Appeal
Jul 20, 2023
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Notice of appeal
Appeal
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Aug 10, 2020
Jul 2, 2020
Decision to grant a European patent
Search/Exam
Jun 16, 2020
(Electronic) Receipt
Search/Exam
Jun 16, 2020
Filing of the translations of the claims
Search/Exam
Jun 16, 2020
French translation of claims
Search/Exam
Jun 16, 2020
German translation of the claims
Search/Exam
Jun 16, 2020
Letter accompanying subsequently filed items
Search/Exam
May 6, 2020
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Intention to grant (signatures)
Search/Exam
Apr 22, 2020
Text intended for grant (clean copy)
Search/Exam
Apr 22, 2020
Mar 24, 2020
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(Electronic) Receipt
Search/Exam
Mar 23, 2020
Amended claims with annotations
Search/Exam
Mar 23, 2020
Claims
Search/Exam
Mar 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 23, 2020
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Mar 6, 2020
Annex to the communication
Search/Exam
Mar 6, 2020
Consultation by telephone/in person
Search/Exam
Mar 6, 2020
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Feb 20, 2020
(Electronic) Receipt
Search/Exam
Feb 20, 2020
Amended claims with annotations
Search/Exam
Feb 20, 2020
Amended claims with annotations
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Amended claims with annotations
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Feb 20, 2020
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Feb 20, 2020
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Feb 20, 2020
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Search/Exam
Feb 20, 2020
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Feb 20, 2020
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Feb 20, 2020
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Feb 20, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 20, 2020
Nov 14, 2019
Advice of delivery
Search/Exam
Nov 4, 2019
Acknowledgement of a document
Search/Exam
Nov 4, 2019
Annex to a communication
Search/Exam
Nov 4, 2019
Annex to the communication
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Nov 4, 2019
Summons to attend oral proceedings
Search/Exam
May 13, 2019
(Electronic) Receipt
Search/Exam
May 13, 2019
Amended claims with annotations
Search/Exam
May 13, 2019
Claims
Search/Exam
May 13, 2019
Letter accompanying subsequently filed items
Search/Exam
May 13, 2019
Jan 8, 2019
Annex to the communication
Search/Exam
Jan 8, 2019
Communication from the Examining Division
Search/Exam
Aug 30, 2017
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Communication to designated inventor
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Jun 28, 2017
Communication to designated inventor
Search/Exam
Jun 28, 2017
Communication to designated inventor
Search/Exam
Jun 28, 2017
Communication to designated inventor
Search/Exam
Jun 7, 2017
Apr 26, 2017
Refund of fees
Search/Exam
Apr 24, 2017
Note on telephone consultation
Search/Exam
Apr 6, 2017
Apr 6, 2017
Amended claims with annotations
Search/Exam
Apr 6, 2017
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Amended description with annotations
Search/Exam
Apr 6, 2017
Amendments received before examination
Search/Exam
Mar 31, 2017
Information on entry into European phase
Search/Exam
Mar 28, 2017
(Electronic) Receipt
Search/Exam
Mar 28, 2017
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Amendments received before examination
Search/Exam
Mar 28, 2017
Request for entry into the European phase
Search/Exam
May 26, 2016
Copy of the international search report
Search/Exam
May 26, 2016
Published international application - A1
Search/Exam
Sep 21, 2015
ISR: cited documents
PCTISA
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Nov 20, 2014
(Electronic) Receipt
PCTRO
Nov 20, 2014
Abstract
PCTRO
Nov 20, 2014
Claims
PCTRO
Nov 20, 2014
Description
PCTRO
Nov 20, 2014
Drawings
PCTRO