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The patent EP3205797 was granted to AUG Winkhaus on Sep 1, 2021. The application was filed on Jan 11, 2017 under application number EP17150925A. 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 |
|---|---|---|---|
| GEZE | Jul 23, 2019 | MANITZ FINSTERWALD PATENT UND RECHTSANWALTSPARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0534089 |
| DESCRIPTION | EP2366855 |
| OPPOSITION | DE1196538 |
| OPPOSITION | DE1244611 |
| OPPOSITION | EP1533453 |
| OPPOSITION | JPH0882140 |
| OPPOSITION | WO2004083575 |
| SEARCH | CN1163977 |
| SEARCH | DE1244611 |
| SEARCH | EP1533453 |
| SEARCH | WO2004083575 |
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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Claims
OPPO
Nov 28, 2019
Description
OPPO
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Nov 5, 2018
Sep 27, 2018
Decision to grant a European patent
Search/Exam
Sep 5, 2018
(Electronic) Receipt
Search/Exam
Sep 5, 2018
English translation of the claims
Search/Exam
Sep 5, 2018
Filing of the translations of the claims
Search/Exam
Sep 5, 2018
French translation of claims
Search/Exam
Sep 5, 2018
Letter accompanying subsequently filed items
Search/Exam
May 31, 2018
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Intention to grant (signatures)
Search/Exam
May 31, 2018
Text intended for grant (clean copy)
Search/Exam
May 31, 2018
May 2, 2018
Examination started
Search/Exam
Feb 26, 2018
(Electronic) Receipt
Search/Exam
Feb 26, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2018
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Jan 30, 2018
(Electronic) Receipt
Search/Exam
Jan 30, 2018
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Amendments received before examination
Search/Exam
Jan 30, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 21, 2017
Jul 19, 2017
Notification of forthcoming publication
Search/Exam
Jun 20, 2017
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European search opinion
Search/Exam
Jun 20, 2017
European search report
Search/Exam
Jun 20, 2017
Information on Search Strategy
Search/Exam
Mar 6, 2017
Communication to designated inventor
Search/Exam
Jan 23, 2017
Letter concerning the priority
Search/Exam
Jan 23, 2017
Priority document
Search/Exam
Jan 11, 2017
Abstract
Search/Exam
Jan 11, 2017
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Claims
Search/Exam
Jan 11, 2017
Description
Search/Exam
Jan 11, 2017
Designation of inventor
Search/Exam
Jan 11, 2017
Drawings
Search/Exam
Jan 11, 2017
Request for grant of a European patent
Search/Exam