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The patent EP3571112 was granted to Zephyros on Jun 29, 2022. The application was filed on Jan 23, 2018 under application number EP18703439A. 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 |
|---|---|---|---|
| SIKA TECHNOLOGY | Mar 28, 2023 | SIKA PATENT ATTORNEYS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2004076831 |
| DESCRIPTION | US5884960 |
| DESCRIPTION | US6348513 |
| DESCRIPTION | US6368438 |
| DESCRIPTION | US6467834 |
| DESCRIPTION | US6811864 |
| DESCRIPTION | US6890021 |
| DESCRIPTION | US6920693 |
| DESCRIPTION | US6921130 |
| DESCRIPTION | US6932421 |
| DESCRIPTION | US7125461 |
| DESCRIPTION | US7249415 |
| INTERNATIONAL-SEARCH-REPORT | EP2463180 |
| INTERNATIONAL-SEARCH-REPORT | GB2375328 |
| INTERNATIONAL-SEARCH-REPORT | US2009085379 |
| INTERNATIONAL-SEARCH-REPORT | WO0158741 |
| INTERNATIONAL-SEARCH-REPORT | WO2010097120 |
| OPPOSITION | EP1717078 |
| OPPOSITION | EP2011679 |
| OPPOSITION | EP2463180 |
| OPPOSITION | GB2375328 |
| OPPOSITION | US2009085379 |
| OPPOSITION | US2015375800 |
| OPPOSITION | US7097794 |
| OPPOSITION | US8430448 |
| OPPOSITION | WO0013876 |
| OPPOSITION | WO0158741 |
| OPPOSITION | WO2006066966 |
| OPPOSITION | WO2010097120 |
| OPPOSITION | WO2018132579 |
| OPPOSITION | WO9743501 |
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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Dec 10, 2025
Dec 4, 2025
(Electronic) Receipt
Appeal
Dec 4, 2025
Dec 4, 2025
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Oct 27, 2025
(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Jul 24, 2025
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(Electronic) Receipt
Appeal
Jun 16, 2025
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Apr 14, 2025
(Electronic) Receipt
Appeal
Apr 14, 2025
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Notice of appeal
Appeal
Feb 14, 2025
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Means of redress
OPPO
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Jul 12, 2022
Jun 2, 2022
Decision to grant a European patent
Search/Exam
May 23, 2022
(Electronic) Receipt
Search/Exam
May 23, 2022
Filing of the translations of the claims
Search/Exam
May 23, 2022
French translation of claims
Search/Exam
May 23, 2022
German translation of the claims
Search/Exam
May 23, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 26, 2022
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Intention to grant (signatures)
Search/Exam
Jan 26, 2022
Text intended for grant (clean copy)
Search/Exam
Jan 26, 2022
Nov 2, 2021
(Electronic) Receipt
Search/Exam
Nov 2, 2021
Amended claims with annotations
Search/Exam
Nov 2, 2021
Claims
Search/Exam
Nov 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 2, 2021
Jul 27, 2021
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Jul 27, 2021
Intention to grant (signatures)
Search/Exam
Jul 27, 2021
Text intended for grant (clean copy)
Search/Exam
Jul 27, 2021
May 31, 2021
(Electronic) Receipt
Search/Exam
May 31, 2021
Amended claims with annotations
Search/Exam
May 31, 2021
Amended description with annotations
Search/Exam
May 31, 2021
Claims
Search/Exam
May 31, 2021
Description
Search/Exam
May 31, 2021
Letter accompanying subsequently filed items
Search/Exam
May 31, 2021
Feb 3, 2021
Annex to the communication
Search/Exam
Feb 3, 2021
Communication from the Examining Division
Search/Exam
Jan 11, 2021
(Electronic) Receipt
Search/Exam
Jan 11, 2021
Amended claims with annotations
Search/Exam
Jan 11, 2021
Claims
Search/Exam
Jan 11, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 11, 2021
Oct 23, 2020
Oct 20, 2020
(Electronic) Receipt
Search/Exam
Oct 20, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 20, 2020
Jun 26, 2020
Annex to the communication
Search/Exam
Jun 26, 2020
Communication from the Examining Division
Search/Exam
Jun 22, 2020
Examination started
Search/Exam
Jan 2, 2020
Dec 18, 2019
Oct 30, 2019
Sep 6, 2019
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Communication to designated inventor
Search/Exam
Aug 12, 2019
(Electronic) Receipt
Search/Exam
Aug 12, 2019
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Request for entry into the European phase
Search/Exam
Aug 6, 2019
Jun 3, 2019
Information on entry into European phase
Search/Exam
Aug 15, 2018
Jul 26, 2018
Copy of the international search report
Search/Exam
Jul 26, 2018
Published international application - A1
Search/Exam
Jun 14, 2018
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