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The patent EP3682870 was granted to DR Willmar Schwabe on Aug 30, 2023. The application was filed on Jan 15, 2019 under application number EP19151878A. 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 |
|---|---|---|---|
| KORTH | May 17, 2024 | BUREAU MFJ BOCKSTAEL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE202014005450U |
| DESCRIPTION | EP2072054 |
| DESCRIPTION | EP2701688 |
| DESCRIPTION | WO2012146592 |
| OPPOSITION | DE102005062417 |
| OPPOSITION | DE202011108417U |
| OPPOSITION | DE3735525 |
| OPPOSITION | DE3940091 |
| OPPOSITION | EP0312913 |
| OPPOSITION | EP0431535 |
| OPPOSITION | EP0814824 |
| OPPOSITION | EP2072054 |
| OPPOSITION | EP2599393 |
| OPPOSITION | EP2701688 |
| OPPOSITION | US4571407 |
| OPPOSITION | US5852052 |
| OPPOSITION | US5895785 |
| OPPOSITION | WO2007073727 |
| SEARCH | EP2072054 |
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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Jan 9, 2026
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Means of redress
OPPO
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Authorisation
OPPO
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Letter accompanying subsequently filed items
Search/Exam
Dec 12, 2023
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Aug 3, 2023
Decision to grant a European patent
Search/Exam
Jul 21, 2023
(Electronic) Receipt
Search/Exam
Jul 21, 2023
(Electronic) Receipt
Search/Exam
Jul 21, 2023
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English translation of the claims
Search/Exam
Jul 21, 2023
Filing of the translations of the claims
Search/Exam
Jul 21, 2023
French translation of claims
Search/Exam
Jul 21, 2023
Letter accompanying subsequently filed items
Search/Exam
Jul 21, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 15, 2023
Mar 15, 2023
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Mar 15, 2023
Intention to grant (signatures)
Search/Exam
Mar 15, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 15, 2023
Jul 14, 2022
(Electronic) Receipt
Search/Exam
Jul 14, 2022
Amended description with annotations
Search/Exam
Jul 14, 2022
Description
Search/Exam
Jul 14, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 14, 2022
Mar 22, 2022
Annex to the communication
Search/Exam
Mar 22, 2022
Communication from the Examining Division
Search/Exam
Mar 16, 2022
Examination started
Search/Exam
Jan 22, 2021
(Electronic) Receipt
Search/Exam
Jan 22, 2021
Jan 22, 2021
Amended claims with annotations
Search/Exam
Jan 22, 2021
Amendments received before examination
Search/Exam
Jan 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 22, 2021
Jul 27, 2020
Jun 24, 2020
Notification of forthcoming publication
Search/Exam
Jul 5, 2019
Jul 5, 2019
European search opinion
Search/Exam
Jul 5, 2019
European search report
Search/Exam
Jul 5, 2019
Information on Search Strategy
Search/Exam
Jun 19, 2019
Search started
Search/Exam
Mar 8, 2019
Communication to designated inventor
Search/Exam
Mar 8, 2019
Communication to designated inventor
Search/Exam
Jan 15, 2019
Abstract
Search/Exam
Jan 15, 2019
Jan 15, 2019
Claims
Search/Exam
Jan 15, 2019
Description
Search/Exam
Jan 15, 2019
Designation of inventor
Search/Exam
Jan 15, 2019
Request for grant of a European patent
Search/Exam