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The patent EP3770486 was granted to Siteco on Apr 23, 2025. The application was filed on Jul 24, 2020 under application number EP20187595A. 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 |
|---|---|---|---|
| SCHOPF | Dec 9, 2022 | SAMSON & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN204806197U |
| OPPOSITION | DE202013007713U |
| OPPOSITION | EP3073465 |
| OPPOSITION | JP2005056689 |
| OPPOSITION | JP2009032260 |
| OPPOSITION | KR20150020971 |
| OPPOSITION | US2008080178 |
| OPPOSITION | US2019107273 |
| OPPOSITION | US5939987 |
| OPPOSITION | WO2013144312 |
| OPPOSITION | WO2019135587 |
| SEARCH | CN204806197U |
| SEARCH | DE202013007713U |
| SEARCH | KR20150020971 |
| SEARCH | KR20150061934 |
| SEARCH | US2008080178 |
| SEARCH | WO2013144312 |
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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Mar 27, 2025
Mar 27, 2025
Mar 14, 2025
Mar 14, 2025
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Mar 7, 2025
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Mar 5, 2025
Refund of fees
Appeal
Mar 4, 2025
Mar 4, 2025
Feb 27, 2025
Feb 25, 2025
(Electronic) Receipt
Appeal
Feb 25, 2025
Feb 25, 2025
Feb 25, 2025
Withdrawal of an appeal
Appeal
Jan 13, 2025
Jan 13, 2025
Jan 7, 2025
(Electronic) Receipt
Appeal
Jan 7, 2025
Jan 7, 2025
Notice of appeal
Appeal
Nov 6, 2024
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Means of redress
OPPO
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Mar 22, 2022
Feb 10, 2022
Decision to grant a European patent
Search/Exam
Feb 1, 2022
(Electronic) Receipt
Search/Exam
Feb 1, 2022
English translation of the claims
Search/Exam
Feb 1, 2022
Filing of the translations of the claims
Search/Exam
Feb 1, 2022
French translation of claims
Search/Exam
Oct 18, 2021
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Intention to grant (signatures)
Search/Exam
Oct 18, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 18, 2021
Aug 20, 2021
Examination started
Search/Exam
Jul 22, 2021
(Electronic) Receipt
Search/Exam
Jul 22, 2021
Jul 22, 2021
Amended claims with annotations
Search/Exam
Jul 22, 2021
Jul 22, 2021
Amended description with annotations
Search/Exam
Jul 22, 2021
Amendments received before examination
Search/Exam
Jul 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2021
Jan 13, 2021
Notification of forthcoming publication
Search/Exam
Nov 19, 2020
Nov 19, 2020
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European search opinion
Search/Exam
Nov 19, 2020
European search report
Search/Exam
Nov 19, 2020
Information on Search Strategy
Search/Exam
Nov 13, 2020
Modified abstract
Search/Exam
Oct 27, 2020
Search started
Search/Exam
Sep 16, 2020
Communication to designated inventor
Search/Exam
Sep 16, 2020
Communication to designated inventor
Search/Exam
Aug 14, 2020
Letter concerning the priority
Search/Exam
Aug 14, 2020
Priority document
Search/Exam
Jul 24, 2020
Abstract
Search/Exam
Jul 24, 2020
Jul 24, 2020
Claims
Search/Exam
Jul 24, 2020
Description
Search/Exam
Jul 24, 2020
Designation of inventor
Search/Exam
Jul 24, 2020
Drawings
Search/Exam
Jul 24, 2020
Priority search results
Search/Exam
Jul 24, 2020
Request for grant of a European patent
Search/Exam