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The patent EP3898857 was granted to Actega Rhenania on Oct 19, 2022. The application was filed on Dec 12, 2019 under application number EP19816362A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| PPG INDUSTRIES | Jul 19, 2023 | APPLEYARD LEES | ADMISSIBLE |
| CONSTANTIA TEICH | Jul 18, 2023 | PATENTANWALTE BARGER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP2959981 |
| DESCRIPTION | EP3318337 |
| DESCRIPTION | US8765241 |
| DESCRIPTION | WO2007137974 |
| DESCRIPTION | WO2012167889 |
| INTERNATIONAL-SEARCH-REPORT | EP2959981 |
| INTERNATIONAL-SEARCH-REPORT | JPH1180616 |
| INTERNATIONAL-SEARCH-REPORT | US2005014012 |
| INTERNATIONAL-SEARCH-REPORT | US5087286 |
| OPPOSITION | EP2598582 |
| OPPOSITION | EP2959981 |
| OPPOSITION | JP2013193273 |
| OPPOSITION | US2015099837 |
| OPPOSITION | WO2004013240 |
| OPPOSITION | WO2011123632 |
| OPPOSITION | WO2015197552 |
| OPPOSITION | WO2017079559 |
| OPPOSITION | WO2018085662 |
| OPPOSITION | WO9915570 |
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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Refund of fees
Search/Exam
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(Electronic) Receipt
Appeal
Sep 5, 2025
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Withdrawal of an appeal
Appeal
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Appeal
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Appeal
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Decision to grant a European patent
Search/Exam
Sep 14, 2022
(Electronic) Receipt
Search/Exam
Sep 14, 2022
Filing of the translations of the claims
Search/Exam
Sep 14, 2022
French translation of claims
Search/Exam
Sep 14, 2022
German translation of the claims
Search/Exam
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Intention to grant (signatures)
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Jul 13, 2022
Text intended for grant (clean copy)
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Examination started
Search/Exam
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Priority search results copy provided by EPO
Search/Exam
Jun 28, 2021
May 5, 2021
(Electronic) Receipt
Search/Exam
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Request for entry into the European phase
Search/Exam
Apr 30, 2021
Information on entry into European phase
Search/Exam
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Written opinion
PCT2
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Notification of election of EPO
Search/Exam
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PCT demand form
PCT2
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Copy of the international search report
Search/Exam
Jun 25, 2020
Published international application - A1
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Dec 18, 2019
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(Electronic) Receipt
PCTRO
Dec 12, 2019
Abstract
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Dec 12, 2019
Claims
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