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The patent EP3734010 was granted to Grzywacz on Sep 8, 2021. The application was filed on Mar 27, 2020 under application number EP20166472A. 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 |
|---|---|---|---|
| EDUARD KRONENBERG | Jun 8, 2022 | ERNICKE PATENT UND RECHTSANWALTE PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | PL205223B |
| DESCRIPTION | PL65674Y |
| OPPOSITION | DE202004004933U |
| OPPOSITION | DE202005004601U |
| OPPOSITION | DE202012102380U |
| OPPOSITION | DE202014104222U |
| OPPOSITION | DE29909413U |
| OPPOSITION | EP0916013 |
| OPPOSITION | PL205223B |
| OPPOSITION | PL65674Y |
| OPPOSITION | WO0223004 |
| OPPOSITION | WO2018162584 |
| OPPOSITION | WO9934083 |
| SEARCH | DE202004004933U |
| SEARCH | DE202014104222U |
| SEARCH | DE29909413U |
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 6, 2025
Oct 31, 2025
(Electronic) Receipt
Appeal
Oct 31, 2025
Oct 31, 2025
Oct 31, 2025
Oct 31, 2025
Oct 31, 2025
Reply to appeal
Appeal
Jul 1, 2025
Jul 1, 2025
Jun 20, 2025
(Electronic) Receipt
Appeal
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 19, 2025
(Electronic) Receipt
Appeal
Jun 19, 2025
Jun 19, 2025
May 6, 2025
May 6, 2025
Apr 22, 2025
(Electronic) Receipt
Appeal
Apr 22, 2025
Notice of appeal
Appeal
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
Means of redress
OPPO
Feb 19, 2025
Feb 19, 2025
Feb 19, 2025
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Dec 19, 2024
Dec 17, 2024
Dec 13, 2024
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Feb 17, 2023
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Jul 4, 2022
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Jun 28, 2022
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Jun 22, 2022
Authorisation
OPPO
Jun 22, 2022
Jun 21, 2022
Jun 21, 2022
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Jun 20, 2022
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Jun 10, 2022
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Jun 8, 2022
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Jun 8, 2022
Sep 21, 2021
Aug 12, 2021
Decision to grant a European patent
Search/Exam
Aug 2, 2021
(Electronic) Receipt
Search/Exam
Aug 2, 2021
Filing of the translations of the claims
Search/Exam
Aug 2, 2021
French translation of claims
Search/Exam
Aug 2, 2021
German translation of the claims
Search/Exam
Aug 2, 2021
Letter accompanying subsequently filed items
Search/Exam
May 7, 2021
May 7, 2021
May 7, 2021
Intention to grant (signatures)
Search/Exam
May 7, 2021
Text intended for grant (clean copy)
Search/Exam
May 7, 2021
Apr 20, 2021
Examination started
Search/Exam
Dec 7, 2020
(Electronic) Receipt
Search/Exam
Dec 7, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 7, 2020
Priority search results
Search/Exam
Dec 4, 2020
Nov 9, 2020
Oct 7, 2020
Notification of forthcoming publication
Search/Exam
Oct 1, 2020
Oct 1, 2020
European search opinion
Search/Exam
Oct 1, 2020
European search report
Search/Exam
Oct 1, 2020
Information on Search Strategy
Search/Exam
Sep 17, 2020
Search started
Search/Exam
Sep 4, 2020
(Electronic) Receipt
Search/Exam
Sep 4, 2020
Abstract
Search/Exam
Sep 4, 2020
Claims
Search/Exam
Sep 4, 2020
Description
Search/Exam
Sep 4, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2020
Jun 3, 2020
(Electronic) Receipt
Search/Exam
Jun 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 3, 2020
Matter concerning the application
Search/Exam
Jun 3, 2020
Matter concerning the application
Search/Exam
May 8, 2020
Apr 21, 2020
Letter concerning the priority
Search/Exam
Apr 21, 2020
Priority document
Search/Exam
Apr 16, 2020
Mar 27, 2020
Mar 27, 2020
Mar 27, 2020
Designation of inventor
Search/Exam
Mar 27, 2020
Drawings
Search/Exam
Mar 27, 2020
Priority search results
Search/Exam
Mar 27, 2020
Request for grant of a European patent
Search/Exam
Mar 27, 2020