The patent EP3669654 was granted to Lanxess Deutschland on Oct 27, 2021. The application was originally filed on Dec 18, 2018 under application number EP18213638A. The patent is currently recorded with a legal status of "Opposition Rejected".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number | 
|---|---|
| DESCRIPTION | DE102006061890 | 
| DESCRIPTION | WO2008000797 | 
| DESCRIPTION | WO2008080963 | 
| OPPOSITION | DE102006061890 | 
| OPPOSITION | EP2801256 | 
| OPPOSITION | JPH0616506 | 
| OPPOSITION | WO0215693 | 
| OPPOSITION | WO2004000953 | 
| SEARCH | WO2008080963 | 
| SEARCH | WO2015128382 | 
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text | 
|---|---|
| OPPOSITION | - Burkhardt Michael, Vonbank Roger, "Auswaschung von verkapselten Bioziden aus Fassaden", HSR Schrift, (20110901), pages 4pp, 1 - 13, XP055950973 | 
| OPPOSITION | - Klaus Breuer; Florian Mayer; Christian Scherer; Regina Schwerd; Klaus Sedlbauer, "Wirkstoffauswaschung aus hydrophoben Fassadenbeschichtungen: verkapselte versus unverkapselte Biozidsysteme", BAUPHYSIK, DE , (20120203), vol. 34, no. 1, doi:10.1002/bapi.201200002, ISSN 0171-5445, pages 19 - 23, XP071492414 | 
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Reply to appeal
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General authorisation
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Notice of appeal
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Sep 30, 2021
Decision to grant a European patent
Search/Exam
Sep 17, 2021
(Electronic) Receipt
Search/Exam
Sep 17, 2021
English translation of the claims
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Sep 17, 2021
Filing of the translations of the claims
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Sep 17, 2021
French translation of claims
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Sep 17, 2021
Letter accompanying subsequently filed items
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Aug 13, 2021
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Intention to grant (signatures)
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Aug 13, 2021
Text intended for grant (clean copy)
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Aug 13, 2021
Jun 21, 2021
Examination started
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Nov 5, 2020
Oct 30, 2020
Letter accompanying subsequently filed items
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Oct 30, 2020
Jul 8, 2020
(Electronic) Receipt
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Jul 8, 2020
Letter accompanying subsequently filed items
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Jul 8, 2020
Reply to Written Opinion prepared by the EPO
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Jun 29, 2020
May 27, 2020
Notification of forthcoming publication
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May 8, 2019
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European search opinion
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European search report
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May 8, 2019
Information on Search Strategy
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Search started
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Jan 21, 2019
(Electronic) Receipt
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Jan 21, 2019
Designation of inventor
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Jan 21, 2019
Letter accompanying subsequently filed items
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Dec 18, 2018
Abstract
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Dec 18, 2018
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Claims
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Dec 18, 2018
Description
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Dec 18, 2018
Request for grant of a European patent
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