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The patent EP2534855 was granted to Siemens Medical Instruments PTE on Jan 24, 2018. The application was filed on Apr 20, 2010 under application number EP10717094A. 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 |
|---|---|---|---|
| GN HEARING OTICON | Oct 24, 2018 | AERA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2008273733 |
| DESCRIPTION | US5987146 |
| DESCRIPTION | US7027608 |
| DESCRIPTION | US7110562 |
| DESCRIPTION | WO2008095489 |
| INTERNATIONAL-SEARCH-REPORT | DE102005019994 |
| INTERNATIONAL-SEARCH-REPORT | WO9706651 |
| OPPOSITION | EP2560411 |
| OPPOSITION | US2007064967 |
| OPPOSITION | US3045073 |
| OPPOSITION | US3119903 |
| OPPOSITION | US7123733 |
| OPPOSITION | WO2007011806 |
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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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
Dec 4, 2019
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Decision to grant a European patent
Search/Exam
Dec 12, 2017
(Electronic) Receipt
Search/Exam
Dec 12, 2017
English translation of the claims
Search/Exam
Dec 12, 2017
Filing of the translations of the claims
Search/Exam
Dec 12, 2017
French translation of claims
Search/Exam
Dec 12, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 22, 2017
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Intention to grant (signatures)
Search/Exam
Sep 22, 2017
Text intended for grant (clean copy)
Search/Exam
Sep 22, 2017
Apr 25, 2017
Abstract
Search/Exam
Apr 25, 2017
Abstract
Search/Exam
Apr 25, 2017
Amended claims with annotations
Search/Exam
Apr 25, 2017
Amended description with annotations
Search/Exam
Apr 25, 2017
Claims
Search/Exam
Apr 25, 2017
Description
Search/Exam
Apr 25, 2017
Mar 13, 2017
Annex to the communication
Search/Exam
Mar 13, 2017
Communication from the Examining Division
Search/Exam
Oct 4, 2016
Amended claims with annotations
Search/Exam
Oct 4, 2016
Claims
Search/Exam
Oct 4, 2016
Sep 30, 2016
Amended claims with annotations
Search/Exam
Sep 30, 2016
Claims
Search/Exam
Sep 30, 2016
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Jul 27, 2016
Apr 4, 2016
Annex to the communication
Search/Exam
Apr 4, 2016
Communication from the Examining Division
Search/Exam
Dec 7, 2015
Amended claims with annotations
Search/Exam
Dec 7, 2015
Claims
Search/Exam
Dec 7, 2015
Dec 4, 2015
Amended claims with annotations
Search/Exam
Dec 4, 2015
Claims
Search/Exam
Dec 4, 2015
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Annex to the communication
Search/Exam
May 26, 2015
Communication from the Examining Division
Search/Exam
May 18, 2015
Examination started
Search/Exam
Apr 9, 2015
Apr 1, 2015
Mar 31, 2015
Mar 30, 2015
Nov 21, 2012
Sep 18, 2012
Sep 14, 2012
Communication to designated inventor
Search/Exam
Sep 14, 2012
Communication to designated inventor
Search/Exam
Sep 14, 2012
Communication to designated inventor
Search/Exam
Sep 14, 2012
Communication to designated inventor
Search/Exam
Aug 29, 2012
Aug 7, 2012
(Electronic) Receipt
Search/Exam
Aug 7, 2012
Aug 7, 2012
Amendments received before examination
Search/Exam
Aug 7, 2012
Request for entry into the European phase
Search/Exam
Jul 3, 2012
Jul 3, 2012
Notification of the recording of a change
Search/Exam
Jun 22, 2012
Information on entry into European phase
Search/Exam
Sep 6, 2011
Sep 6, 2011
Aug 18, 2011
Copy of the international search report
Search/Exam
Aug 18, 2011
Copy of the international search report
Search/Exam
Aug 18, 2011
Published international application - A1
Search/Exam
Oct 15, 2010
Oct 15, 2010
Oct 15, 2010
Apr 20, 2010
(Electronic) Receipt
PCTRO
Apr 20, 2010
Abstract
PCTRO
Apr 20, 2010
Claims
PCTRO
Apr 20, 2010
Description
PCTRO
Apr 20, 2010
Drawings
PCTRO