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The patent EP3730697 was granted to Oilquick Deutschland on Sep 3, 2025. The application was filed on Feb 11, 2020 under application number EP20156522A. 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 |
|---|---|---|---|
| ROTOTILT GROUP | Jan 13, 2023 | EHRNER & DELMAR PATENTBYRA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE202017103198U |
| OPPOSITION | CH703286 |
| OPPOSITION | DE202013001658U |
| OPPOSITION | DE202016005365U |
| OPPOSITION | DE202017103198U |
| OPPOSITION | DE202017107699U |
| OPPOSITION | DE202018100423U |
| OPPOSITION | SE501152 |
| OPPOSITION | SE501153 |
| OPPOSITION | US2017350090 |
| OPPOSITION | US4558605 |
| OPPOSITION | US4622874 |
| OPPOSITION | US5941653 |
| SEARCH | DE202017103198U |
| SEARCH | DE202018100423U |
| SEARCH | WO2016107703 |
| SEARCH | WO2018074937 |
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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OPPO
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Authorisation
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Apr 26, 2022
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Decision to grant a European patent
Search/Exam
Mar 3, 2022
(Electronic) Receipt
Search/Exam
Mar 3, 2022
English translation of the claims
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Mar 3, 2022
Filing of the translations of the claims
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Mar 3, 2022
French translation of claims
Search/Exam
Mar 3, 2022
Letter accompanying subsequently filed items
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Jan 7, 2022
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Intention to grant (signatures)
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Jan 7, 2022
Text intended for grant (clean copy)
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Jan 7, 2022
Dec 3, 2021
Examination started
Search/Exam
Nov 12, 2020
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(Electronic) Receipt
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Oct 21, 2020
Letter accompanying subsequently filed items
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Oct 21, 2020
Written request for examination
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Sep 30, 2020
Notification of forthcoming publication
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Sep 25, 2020
Sep 25, 2020
European search opinion
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Sep 25, 2020
European search report
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Sep 25, 2020
Information on Search Strategy
Search/Exam
Aug 20, 2020
Search started
Search/Exam
May 6, 2020
Communication to designated inventor
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May 6, 2020
Communication to designated inventor
Search/Exam
Feb 24, 2020
Letter concerning the priority
Search/Exam
Feb 24, 2020
Priority document
Search/Exam
Feb 11, 2020
Abstract
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Feb 11, 2020
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Claims
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Feb 11, 2020
Description
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Feb 11, 2020
Designation of inventor
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Feb 11, 2020
Drawings
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Feb 11, 2020
Priority search results
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Feb 11, 2020
Request for grant of a European patent
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