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The patent EP3936014 was granted to Vorwerk & Interholding on May 31, 2023. The application was filed on Jun 17, 2021 under application number EP21180121A. 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 |
|---|---|---|---|
| WUNDERMIX | Feb 29, 2024 | PATENTANWALTE BAUER VORBERG KAYSER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102010037769 |
| DESCRIPTION | EP2335534 |
| DESCRIPTION | EP2636344 |
| DESCRIPTION | WO2018007833 |
| EXAMINATION | EP3586688 |
| OPPOSITION | DE102012100940 |
| OPPOSITION | DE202012105011U |
| OPPOSITION | DE202020106270U |
| OPPOSITION | DE7507736U |
| OPPOSITION | EP3222173 |
| OPPOSITION | US4194697 |
| OPPOSITION | US4199122 |
| OPPOSITION | WO2009112364 |
| OPPOSITION | WO2020227742 |
| OTHER | DE202012105011U |
| SEARCH | DE102010037769 |
| SEARCH | EP2636344 |
| SEARCH | FR2955475 |
| SEARCH | WO2018007833 |
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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Nov 4, 2025
Oct 27, 2025
Oct 27, 2025
Non-scannable object
Appeal
Oct 23, 2025
(Electronic) Receipt
Appeal
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Notice of opposition
Appeal
Oct 23, 2025
Aug 29, 2025
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(Electronic) Receipt
Appeal
Aug 26, 2025
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Notice of appeal
Appeal
Aug 26, 2025
Notice of appeal
Appeal
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OPPO
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Decision to grant a European patent
Search/Exam
Apr 18, 2023
(Electronic) Receipt
Search/Exam
Apr 18, 2023
English translation of the claims
Search/Exam
Apr 18, 2023
Filing of the translations of the claims
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Apr 18, 2023
French translation of claims
Search/Exam
Apr 18, 2023
Letter accompanying subsequently filed items
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Apr 11, 2023
Letter which had not been notified
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Mar 31, 2023
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Observations by third parties
Search/Exam
Mar 27, 2023
Observations by third parties
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(Electronic) Receipt
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Mar 16, 2023
Citation filed by a third party
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Citation filed by a third party
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Letter accompanying subsequently filed items
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Mar 14, 2023
(Electronic) Receipt
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Mar 14, 2023
Citation filed by a third party
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Mar 14, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 14, 2023
Observations by third parties
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Intention to grant (signatures)
Search/Exam
Mar 9, 2023
Text intended for grant (clean copy)
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Mar 9, 2023
Feb 1, 2023
Amended claims with annotations
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Feb 1, 2023
Amended description with annotations
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Feb 1, 2023
Claims
Search/Exam
Feb 1, 2023
Description
Search/Exam
Feb 1, 2023
Jan 10, 2023
Annex to the communication
Search/Exam
Jan 10, 2023
Communication from the Examining Division
Search/Exam
Jan 2, 2023
Examination started
Search/Exam
Dec 20, 2022
(Electronic) Receipt
Search/Exam
Dec 20, 2022
Letter accompanying subsequently filed items
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Dec 1, 2022
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Amended claims with annotations
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Dec 1, 2022
Amended claims with annotations
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Amended claims with annotations
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Dec 1, 2022
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Mar 14, 2022
(Electronic) Receipt
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Mar 14, 2022
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Amended description with annotations
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Mar 14, 2022
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Mar 14, 2022
Letter accompanying subsequently filed items
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Jan 17, 2022
Dec 15, 2021
Notification of forthcoming publication
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Aug 20, 2021
Aug 17, 2021
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Jul 27, 2021
Designation of inventor
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Jul 27, 2021
Letter concerning the inventor
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Jul 16, 2021
Refund of fees
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Jul 13, 2021
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European search opinion
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Jul 13, 2021
European search report
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Jul 13, 2021
Information on Search Strategy
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Jul 8, 2021
Deficiency in designation of inventor
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Jul 8, 2021
Priority search results copy provided by EPO
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Jul 8, 2021
Priority search results copy provided by EPO
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Jul 5, 2021
Search started
Search/Exam
Jun 17, 2021
Abstract
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Jun 17, 2021
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Claims
Search/Exam
Jun 17, 2021
Description
Search/Exam
Jun 17, 2021
Drawings
Appeal
Jun 17, 2021
Drawings
Search/Exam
Jun 17, 2021
Request for grant of a European patent
Search/Exam