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The patent EP3733457 was granted to Compagnie Plastic Omnium on Jun 1, 2022. The application was filed on Apr 29, 2020 under application number EP20171969A. 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 |
|---|---|---|---|
| REHAU AUTOMOTIVE | Mar 1, 2023 | GRUNECKER PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE102006055996 |
| OPPOSITION | DE102011102532 |
| OPPOSITION | DE102011112835 |
| OPPOSITION | DE102012003200 |
| OPPOSITION | DE102014110084 |
| OPPOSITION | DE102017006693 |
| OPPOSITION | DE20021312U |
| OPPOSITION | DE4109532 |
| OPPOSITION | DE602006000183T |
| OPPOSITION | EP2628638 |
| OPPOSITION | FR2933664 |
| OPPOSITION | FR3073471 |
| SEARCH | EP2732955 |
| SEARCH | FR2972402 |
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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Dec 15, 2025
Dec 8, 2025
(Electronic) Receipt
Appeal
Dec 8, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Sep 26, 2025
Sep 26, 2025
Reply to appeal
Appeal
Jul 24, 2025
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(Electronic) Receipt
Appeal
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May 28, 2025
(Electronic) Receipt
Appeal
May 28, 2025
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Mar 28, 2025
(Electronic) Receipt
Appeal
Mar 28, 2025
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Notice of appeal
Appeal
Jan 28, 2025
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OPPO
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OPPO
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Jun 14, 2022
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Decision to grant a European patent
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Apr 15, 2022
(Electronic) Receipt
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Apr 15, 2022
Filing of the translations of the claims
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Apr 15, 2022
Letter accompanying subsequently filed items
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Mar 25, 2022
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Intention to grant (signatures)
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Mar 25, 2022
Text intended for grant (clean copy)
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Mar 25, 2022
Feb 4, 2022
(Electronic) Receipt
Search/Exam
Feb 4, 2022
Amended claims with annotations
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Feb 4, 2022
Claims
Search/Exam
Feb 4, 2022
English translation of the claims
Search/Exam
Feb 4, 2022
German translation of the claims
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Feb 4, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 4, 2022
Oct 5, 2021
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Oct 5, 2021
Intention to grant (signatures)
Search/Exam
Oct 5, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 5, 2021
Aug 26, 2021
Examination started
Search/Exam
Jun 9, 2021
Decision to allow further processing
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Jun 2, 2021
(Electronic) Receipt
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Jun 2, 2021
Jun 2, 2021
Amended description with annotations
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Jun 2, 2021
Letter accompanying subsequently filed items
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Jun 2, 2021
Request for further processing
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May 28, 2021
Apr 8, 2021
(Electronic) Receipt
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Apr 8, 2021
Letter accompanying subsequently filed items
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Nov 9, 2020
Oct 7, 2020
Notification of forthcoming publication
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Sep 9, 2020
Refund of fees
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Aug 31, 2020
Aug 31, 2020
European search opinion
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Aug 31, 2020
European search report
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Aug 31, 2020
Information on Search Strategy
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Aug 21, 2020
Search started
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Aug 14, 2020
Letter concerning the priority
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Aug 14, 2020
Priority document
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Jun 22, 2020
Communication to designated inventor
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Jun 22, 2020
Communication to designated inventor
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Communication to designated inventor
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Jun 22, 2020
Communication to designated inventor
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Jun 22, 2020
Communication to designated inventor
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Apr 30, 2020
Priority search results copy provided by EPO
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Apr 29, 2020
Abstract
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Apr 29, 2020
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Claims
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Apr 29, 2020
Description
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Apr 29, 2020
Designation of inventor
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Apr 29, 2020
Drawings
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Apr 29, 2020
Priority search results
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Apr 29, 2020
Request for grant of a European patent
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