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The patent EP3581731 was granted to Akzenta Paneele Profile on Nov 30, 2022. The application was filed on Jun 15, 2018 under application number EP18178061A. 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 |
|---|---|---|---|
| LIGNUM | Aug 24, 2023 | BARDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANWALTE RECHTSANWALTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP3087280 |
| OPPOSITION | CN107060269 |
| OPPOSITION | EP2977525 |
| OPPOSITION | WO2007028560 |
| OPPOSITION | WO2012142986 |
| OPPOSITION | WO2013179260 |
| OPPOSITION | WO2016050848 |
| OPPOSITION | WO2018017637 |
| SEARCH | EP1922455 |
| SEARCH | EP2699416 |
| SEARCH | EP3087230 |
| SEARCH | WO2018087637 |
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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Description
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Description
OPPO
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OPPO
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OPPO
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Decision to grant a European patent
Search/Exam
Oct 21, 2022
(Electronic) Receipt
Search/Exam
Oct 21, 2022
Filing of the translations of the claims
Search/Exam
Oct 21, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 14, 2022
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Intention to grant (signatures)
Search/Exam
Oct 14, 2022
Text intended for grant (clean copy)
Search/Exam
Oct 14, 2022
Aug 18, 2022
(Electronic) Receipt
Search/Exam
Aug 18, 2022
Amended claims with annotations
Search/Exam
Aug 18, 2022
Claims
Search/Exam
Aug 18, 2022
English translation of the claims
Search/Exam
Aug 18, 2022
French translation of claims
Search/Exam
Aug 18, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 18, 2022
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Intention to grant (signatures)
Search/Exam
May 20, 2022
Text intended for grant (clean copy)
Search/Exam
May 20, 2022
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Examination started
Search/Exam
May 15, 2020
(Electronic) Receipt
Search/Exam
May 15, 2020
May 15, 2020
Amended claims with annotations
Search/Exam
May 15, 2020
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Amended description with annotations
Search/Exam
May 15, 2020
Amendments received before examination
Search/Exam
May 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 2, 2020
Nov 20, 2019
Notification of forthcoming publication
Search/Exam
Dec 14, 2018
Dec 14, 2018
European search opinion
Search/Exam
Dec 14, 2018
European search report
Search/Exam
Dec 14, 2018
Information on Search Strategy
Search/Exam
Dec 5, 2018
Search started
Search/Exam
Sep 11, 2018
Communication to designated inventor
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Sep 11, 2018
Communication to designated inventor
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Sep 5, 2018
(Electronic) Receipt
Search/Exam
Sep 5, 2018
Designation of inventor
Search/Exam
Sep 5, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 5, 2018
Letter concerning the inventor
Search/Exam
Jul 16, 2018
Deficiency in designation of inventor
Search/Exam
Jun 15, 2018
Abstract
Search/Exam
Jun 15, 2018
Jun 15, 2018
Claims
Search/Exam
Jun 15, 2018
Description
Search/Exam
Jun 15, 2018
Drawings
Search/Exam
Jun 15, 2018
Request for grant of a European patent
Search/Exam