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The patent EP2123113 was granted to Phonak on Feb 14, 2018. The application was filed on Dec 15, 2006 under application number EP06830638A. 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 WIDEX GN HEARING | Nov 14, 2018 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | GB2319690 |
| INTERNATIONAL-SEARCH-REPORT | JPS5995797 |
| INTERNATIONAL-SEARCH-REPORT | US2004131201 |
| INTERNATIONAL-SEARCH-REPORT | WO2005048648 |
| OPPOSITION | EP1718114 |
| OPPOSITION | GB2319690 |
| OPPOSITION | US2003016815 |
| OPPOSITION | US2003161485 |
| OPPOSITION | US2004131201 |
| OPPOSITION | US2004136541 |
| OPPOSITION | US4941187 |
| OPPOSITION | US5715321 |
| OPPOSITION | US6069961 |
| OPPOSITION | US6154552 |
| OPPOSITION | US6327370 |
| OPPOSITION | US6424721 |
| OPPOSITION | WO0076268 |
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.
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Amended description with annotations
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Description
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Examination started
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CDS Clean up - amended applicant details
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Request for entry into the European phase
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Information on entry into European phase
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Published international application - A2
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Dec 15, 2006
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