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The patent EP1897409 was granted to Phonak on Jun 27, 2018. The application was filed on Nov 8, 2005 under application number EP05798676A. 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 GN HEARING | Mar 26, 2019 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1256260 |
| DESCRIPTION | US2003138109 |
| DESCRIPTION | WO0154458 |
| DESCRIPTION | WO0235884 |
| DESCRIPTION | WO2004110099 |
| EXAMINATION | EP1414271 |
| EXAMINATION | WO9641498 |
| INTERNATIONAL-SEARCH-REPORT | US2003128859 |
| INTERNATIONAL-SEARCH-REPORT | US2003138109 |
| INTERNATIONAL-SEARCH-REPORT | WO0154458 |
| INTERNATIONAL-SEARCH-REPORT | WO0235884 |
| INTERNATIONAL-SEARCH-REPORT | WO2004110099 |
| OPPOSITION | DE10304648 |
| OPPOSITION | EP0855130 |
| OPPOSITION | EP1414271 |
| OPPOSITION | US2003128859 |
| OPPOSITION | US2003138109 |
| OPPOSITION | US2004202340 |
| OPPOSITION | WO0154458 |
| OPPOSITION | WO02089520 |
| OPPOSITION | WO0235884 |
| OPPOSITION | WO2004110099 |
| OPPOSITION | WO9641498 |
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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Mar 29, 2021
Refund of fees
Appeal
Mar 25, 2021
Mar 25, 2021
Mar 24, 2021
Mar 23, 2021
Mar 18, 2021
(Electronic) Receipt
Appeal
Mar 18, 2021
Mar 18, 2021
Withdrawal of an appeal
Appeal
Feb 19, 2021
Feb 19, 2021
Feb 10, 2021
(Electronic) Receipt
Appeal
Feb 10, 2021
Feb 10, 2021
Notice of appeal
Appeal
Dec 21, 2020
Dec 10, 2020
Dec 7, 2020
Dec 7, 2020
Dec 7, 2020
Dec 7, 2020
Dec 7, 2020
Dec 7, 2020
Dec 7, 2020
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Dec 7, 2020
Means of redress
OPPO
Dec 7, 2020
Dec 7, 2020
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Sep 29, 2020
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Jul 29, 2020
Description
OPPO
Jul 29, 2020
Description
OPPO
Jul 29, 2020
Description
OPPO
Jul 29, 2020
Jul 29, 2020
Jul 29, 2020
Jul 29, 2020
Jul 27, 2020
Jul 24, 2020
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Jul 9, 2020
Dec 27, 2019
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Mar 26, 2019
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Mar 26, 2019
Mar 26, 2019
Mar 26, 2019
Mar 26, 2019
Jul 9, 2018
Jun 1, 2018
Decision to grant a European patent
Search/Exam
May 16, 2018
(Electronic) Receipt
Search/Exam
May 16, 2018
Filing of the translations of the claims
Search/Exam
May 16, 2018
French translation of claims
Search/Exam
May 16, 2018
German translation of the claims
Search/Exam
May 16, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 25, 2018
Jan 25, 2018
Jan 25, 2018
Intention to grant (signatures)
Search/Exam
Jan 25, 2018
Text intended for grant (clean copy)
Search/Exam
Jan 25, 2018
Sep 6, 2017
(Electronic) Receipt
Search/Exam
Sep 6, 2017
Amended claims with annotations
Search/Exam
Sep 6, 2017
Amended description with annotations
Search/Exam
Sep 6, 2017
Claims
Search/Exam
Sep 6, 2017
Description
Search/Exam
Sep 6, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 6, 2017
Jun 30, 2017
Jun 26, 2017
(Electronic) Receipt
Search/Exam
Jun 26, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 26, 2017
Mar 1, 2017
Annex to the communication
Search/Exam
Mar 1, 2017
Communication from the Examining Division
Search/Exam
Oct 25, 2016
(Electronic) Receipt
Search/Exam
Oct 25, 2016
Amended claims with annotations
Search/Exam
Oct 25, 2016
Claims
Search/Exam
Oct 25, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 25, 2016
Aug 18, 2016
Aug 12, 2016
(Electronic) Receipt
Search/Exam
Aug 12, 2016
Letter accompanying subsequently filed items
Search/Exam
Aug 12, 2016
Apr 15, 2016
Annex to the communication
Search/Exam
Apr 15, 2016
Communication from the Examining Division
Search/Exam
Jul 23, 2015
Jul 13, 2015
Oct 1, 2009
(Electronic) Receipt
Search/Exam
Oct 1, 2009
Claims
Search/Exam
Oct 1, 2009
Description
Search/Exam
Oct 1, 2009
Letter accompanying subsequently filed items
Search/Exam
Oct 1, 2009
Jun 3, 2009
Annex to the communication
Search/Exam
Jun 3, 2009
Communication from the Examining Division
Search/Exam
Mar 7, 2008
Feb 13, 2008
Feb 12, 2008
Feb 1, 2008
Communication to designated inventor
Search/Exam
Feb 1, 2008
Communication to designated inventor
Search/Exam
Feb 1, 2008
Communication to designated inventor
Search/Exam
Feb 1, 2008
Communication to designated inventor
Search/Exam
Jan 21, 2008
Jan 12, 2008
Letter which had not been notified
Search/Exam
Dec 21, 2007
(Electronic) Receipt
Search/Exam
Dec 21, 2007
Request for entry into the European phase
Search/Exam
Nov 9, 2007
Information on entry into European phase
Search/Exam
Jan 24, 2007
Jan 4, 2007
Copy of the international search report
Search/Exam
Jan 4, 2007
Published international application - A1
Search/Exam
Nov 15, 2005
Abstract
PCTISA
Nov 15, 2005
Claims
PCTISA
Nov 15, 2005
Description
PCTISA
Nov 15, 2005
Drawings
PCTISA