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The patent EP4074931 was granted to Roto Frank Fenster UND Trtechnologie on Sep 20, 2023. The application was filed on Mar 15, 2022 under application number EP22162140A. 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 |
|---|---|---|---|
| SIEGENIA AUBI | Jun 19, 2024 | FREUDENBERG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102017201250 |
| DESCRIPTION | DE1961348 |
| DESCRIPTION | DE19834042 |
| DESCRIPTION | DE2015723 |
| DESCRIPTION | DE2456009 |
| DESCRIPTION | DE2953717 |
| DESCRIPTION | DE3127929 |
| DESCRIPTION | DE3545860 |
| DESCRIPTION | DE4138741 |
| DESCRIPTION | DE7144753U |
| DESCRIPTION | EP1264954 |
| DESCRIPTION | EP2762664 |
| DESCRIPTION | FR2521629 |
| OPPOSITION | DE102016207083 |
| OPPOSITION | DE2015723 |
| OPPOSITION | DE2953717 |
| OPPOSITION | DE3041500 |
| OPPOSITION | DE3108212 |
| OPPOSITION | DE3343775 |
| OPPOSITION | DE4138741 |
| OPPOSITION | DE7144753U |
| OPPOSITION | EP2295684 |
| OPPOSITION | FR2521629 |
| SEARCH | DE2015723 |
| SEARCH | DE2953717 |
| SEARCH | DE4138741 |
| SEARCH | DE7144753U |
| SEARCH | FR2521629 |
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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Authorisation
OPPO
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Decision to grant a European patent
Search/Exam
Aug 9, 2023
(Electronic) Receipt
Search/Exam
Aug 9, 2023
English translation of the claims
Search/Exam
Aug 9, 2023
French translation of claims
Search/Exam
Aug 9, 2023
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Jun 14, 2023
Text intended for grant (clean copy)
Search/Exam
Jun 14, 2023
May 3, 2023
Examination started
Search/Exam
Feb 10, 2023
(Electronic) Receipt
Search/Exam
Feb 10, 2023
Letter accompanying subsequently filed items
Search/Exam
Feb 10, 2023
Letter concerning fees and payments
Search/Exam
Oct 24, 2022
Sep 21, 2022
Notification of forthcoming publication
Search/Exam
Sep 1, 2022
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European search opinion
Search/Exam
Sep 1, 2022
European search report
Search/Exam
Sep 1, 2022
Information on Search Strategy
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Mar 17, 2022
Letter concerning the priority
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Mar 17, 2022
Priority document
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Mar 15, 2022
Abstract
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Mar 15, 2022
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Claims
Search/Exam
Mar 15, 2022
Description
Search/Exam
Mar 15, 2022
Designation of inventor
Search/Exam
Mar 15, 2022
Drawings
Search/Exam
Mar 15, 2022
Priority search results
Search/Exam
Mar 15, 2022
Request for grant of a European patent
Search/Exam