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The patent EP3798686 was granted to Sick on Apr 6, 2022. The application was filed on Jul 20, 2020 under application number EP20186611A. 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 |
|---|---|---|---|
| PEPPERLFUCHS | Jan 6, 2023 | SCHIFFER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE202012102729U |
| OPPOSITION | DE102012107329 |
| OPPOSITION | DE102015207567 |
| OPPOSITION | DE10228677 |
| OPPOSITION | DE202012102729U |
| OPPOSITION | DE202013105389U |
| OPPOSITION | DE4126601 |
| OPPOSITION | EP1152259 |
| OPPOSITION | EP1903352 |
| OPPOSITION | EP2565603 |
| OPPOSITION | EP2957876 |
| OPPOSITION | EP3255456 |
| OPPOSITION | US2018210084 |
| OPPOSITION | WO2017094279 |
| SEARCH | DE202012102729U |
| SEARCH | GB1383911 |
| SEARCH | JPS59210411 |
| SEARCH | US2014226330 |
| SEARCH | US2018210084 |
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 18, 2025
Nov 17, 2025
(Electronic) Receipt
Appeal
Nov 17, 2025
Nov 17, 2025
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Nov 11, 2025
(Electronic) Receipt
Appeal
Nov 11, 2025
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Jun 11, 2025
(Electronic) Receipt
Appeal
Jun 11, 2025
Jun 11, 2025
Reply to appeal
Appeal
Mar 21, 2025
Mar 21, 2025
Mar 20, 2025
(Electronic) Receipt
Appeal
Mar 20, 2025
Mar 20, 2025
Dec 11, 2024
Dec 9, 2024
(Electronic) Receipt
Appeal
Dec 9, 2024
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Oct 14, 2024
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(Electronic) Receipt
Appeal
Oct 9, 2024
Oct 9, 2024
Notice of appeal
Appeal
Aug 13, 2024
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OPPO
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Apr 21, 2022
Mar 11, 2022
Decision to grant a European patent
Search/Exam
Jan 26, 2022
(Electronic) Receipt
Search/Exam
Jan 26, 2022
English translation of the claims
Search/Exam
Jan 26, 2022
Filing of the translations of the claims
Search/Exam
Jan 26, 2022
French translation of claims
Search/Exam
Jan 26, 2022
Letter accompanying subsequently filed items
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Dec 10, 2021
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Intention to grant (signatures)
Search/Exam
Dec 10, 2021
Text intended for grant (clean copy)
Search/Exam
Dec 10, 2021
Nov 1, 2021
Examination started
Search/Exam
Aug 18, 2021
(Electronic) Receipt
Search/Exam
Aug 18, 2021
(Electronic) Receipt
Search/Exam
Aug 18, 2021
Aug 18, 2021
Amended claims with annotations
Search/Exam
Aug 18, 2021
Aug 18, 2021
Amended description with annotations
Search/Exam
Aug 18, 2021
Amendments received before examination
Search/Exam
Aug 18, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 18, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 7, 2021
Mar 3, 2021
Notification of forthcoming publication
Search/Exam
Jan 22, 2021
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European search opinion
Search/Exam
Jan 22, 2021
European search report
Search/Exam
Jan 22, 2021
Information on Search Strategy
Search/Exam
Jan 13, 2021
Search started
Search/Exam
Oct 13, 2020
Communication to designated inventor
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Oct 13, 2020
Communication to designated inventor
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Oct 13, 2020
Communication to designated inventor
Search/Exam
Jul 31, 2020
Letter concerning the priority
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Jul 31, 2020
Priority document
Search/Exam
Jul 20, 2020
Abstract
Search/Exam
Jul 20, 2020
Jul 20, 2020
Claims
Search/Exam
Jul 20, 2020
Description
Search/Exam
Jul 20, 2020
Designation of inventor
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Jul 20, 2020
Drawings
Search/Exam
Jul 20, 2020
Priority search results
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Jul 20, 2020
Request for grant of a European patent
Search/Exam