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The patent EP3221889 was granted to Koninklijke Philips on Sep 19, 2018. The application was filed on Nov 12, 2015 under application number EP15794178A. 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 |
|---|---|---|---|
| BOCK | Oct 10, 2018 | SAMSON & PARTNER PATENTANWALTE MBB | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1995995 |
| INTERNATIONAL-SEARCH-REPORT | US4323895 |
| INTERNATIONAL-SEARCH-REPORT | US6406172 |
| OPPOSITION | EP2613616 |
| OPPOSITION | FR2922000 |
| OPPOSITION | JPS5179925 |
| OPPOSITION | US2005243022 |
| OPPOSITION | US2005281033 |
| OPPOSITION | US2007268703 |
| OPPOSITION | US2012218773 |
| OPPOSITION | US2012307503 |
| OPPOSITION | US2014140082 |
| OPPOSITION | US2014292201 |
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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OPPO
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OPPO
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OPPO
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Advice of delivery
Search/Exam
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Annexes in respect of a client data request
Search/Exam
Jun 11, 2018
Letter to the Legal Division
Search/Exam
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Decision to grant a European patent
Search/Exam
Oct 31, 2017
Annexes in respect of a client data request
Search/Exam
Oct 31, 2017
Annexes in respect of a client data request
Search/Exam
Oct 31, 2017
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(Electronic) Receipt
Search/Exam
Oct 24, 2017
French translation of claims
Search/Exam
Oct 24, 2017
German translation of the claims
Search/Exam
Oct 24, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 5, 2017
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Intention to grant (signatures)
Search/Exam
Oct 5, 2017
Text intended for grant (clean copy)
Search/Exam
Oct 5, 2017
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Communication to designated inventor
Search/Exam
Jun 23, 2017
Priority search results copy provided by EPO
Search/Exam
Jun 7, 2017
(Electronic) Receipt
Search/Exam
Jun 7, 2017
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Request for entry into the European phase
Search/Exam
Mar 31, 2017
Information on entry into European phase
Search/Exam
Jun 14, 2016
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Copy of the international search report
Search/Exam
May 26, 2016
Published international application - A1
Search/Exam
Jan 29, 2016
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Nov 19, 2015
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(Electronic) Receipt
PCTRO
Nov 12, 2015
Abstract
PCTRO
Nov 12, 2015
Claims
PCTRO
Nov 12, 2015
Description
PCTRO
Nov 12, 2015
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Drawings
PCTRO
Nov 12, 2015
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