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The patent EP2924069 was granted to Envalior Deutschland on Jun 25, 2025. The application was filed on Feb 25, 2015 under application number EP15156589A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| RHODIA OPERATIONS | Jan 19, 2018 | SCHOLZ | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN103013104 |
| DESCRIPTION | DE102011084519 |
| DESCRIPTION | DE2035390 |
| DESCRIPTION | DE2248242 |
| DESCRIPTION | DE3631539 |
| DESCRIPTION | DE3631540 |
| DESCRIPTION | DE3704655 |
| DESCRIPTION | DE3704657 |
| DESCRIPTION | DE4236122 |
| DESCRIPTION | EP1762592 |
| DESCRIPTION | EP2468810 |
| DESCRIPTION | GB1409275 |
| DESCRIPTION | US3644574 |
| DESCRIPTION | US4806593 |
| DESCRIPTION | US4812515 |
| DESCRIPTION | US4859740 |
| DESCRIPTION | US4861831 |
| DESCRIPTION | US4937285 |
| DESCRIPTION | WO2009003976 |
| OPPOSITION | CN101987915B |
| OPPOSITION | DE202010017765U |
| OPPOSITION | DE202014008607U |
| OPPOSITION | EP2924067 |
| OPPOSITION | EP2924068 |
| OPPOSITION | EP2924070 |
| OPPOSITION | US2008161490 |
| OPPOSITION | US2012165439 |
| SEARCH | CN103013104 |
| SEARCH | EP1762592 |
| SEARCH | EP2468810 |
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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Notice of appeal
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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
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English translation of the claims
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Filing of the translations of the claims
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French translation of claims
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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(Electronic) Receipt
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Annex
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Letter accompanying subsequently filed items
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Notification of forthcoming publication
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Refund of fees
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European search report
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Jun 25, 2015
Priority search results copy provided by EPO
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Abstract
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Feb 25, 2015
Description
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Designation of inventor
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Request for grant of a European patent
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