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The patent EP3600809 was granted to Sika Technology on Apr 26, 2023. The application was filed on Aug 9, 2018 under application number EP18749812A. 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 |
|---|---|---|---|
| AWA SWITZERLAND | Jan 26, 2024 | AWA SWITZERLAND | ADMISSIBLE |
| HOLCIM TECHNOLOGY | Jan 26, 2024 | WSL PATENTANWALTE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2013064826 |
| INTERNATIONAL-SEARCH-REPORT | CN105666640 |
| INTERNATIONAL-SEARCH-REPORT | CN106903776 |
| INTERNATIONAL-SEARCH-REPORT | CN106988535 |
| INTERNATIONAL-SEARCH-REPORT | EP1836992 |
| OPPOSITION | CN105666640 |
| OPPOSITION | CN106088610 |
| OPPOSITION | CN204019730U |
| OPPOSITION | CN204354263U |
| OPPOSITION | DE20215662U |
| OPPOSITION | DE29503838U |
| OPPOSITION | DE9211567U |
| OPPOSITION | EP0120812 |
| OPPOSITION | EP0300342 |
| OPPOSITION | FR2671754 |
| OPPOSITION | GB1599856 |
| OPPOSITION | WO2004080676 |
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 26, 2025
Nov 26, 2025
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Means of redress
OPPO
Aug 4, 2025
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Authorisation
OPPO
Mar 3, 2025
Mar 3, 2025
Sep 19, 2024
Sep 19, 2024
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Sep 11, 2024
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Annex
OPPO
Sep 5, 2024
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Jul 29, 2024
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May 10, 2023
Mar 30, 2023
Decision to grant a European patent
Search/Exam
Mar 13, 2023
(Electronic) Receipt
Search/Exam
Mar 13, 2023
English translation of the claims
Search/Exam
Mar 13, 2023
Filing of the translations of the claims
Search/Exam
Mar 13, 2023
French translation of claims
Search/Exam
Mar 13, 2023
Letter accompanying subsequently filed items
Search/Exam
Dec 13, 2022
Dec 13, 2022
Dec 13, 2022
Dec 13, 2022
Intention to grant (signatures)
Search/Exam
Dec 13, 2022
Text intended for grant (clean copy)
Search/Exam
Dec 13, 2022
May 4, 2022
(Electronic) Receipt
Search/Exam
May 4, 2022
Amended claims with annotations
Search/Exam
May 4, 2022
Claims
Search/Exam
May 4, 2022
Letter accompanying subsequently filed items
Search/Exam
May 4, 2022
Jan 5, 2022
Annex to the communication
Search/Exam
Jan 5, 2022
Communication from the Examining Division
Search/Exam
Dec 22, 2021
Examination started
Search/Exam
Apr 30, 2020
(Electronic) Receipt
Search/Exam
Apr 30, 2020
Apr 30, 2020
Amended claims with annotations
Search/Exam
Apr 30, 2020
Apr 30, 2020
Amendments received before examination
Search/Exam
Apr 30, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2020
Jan 9, 2020
Nov 6, 2019
Nov 4, 2019
Communication to designated inventor
Search/Exam
Nov 4, 2019
Communication to designated inventor
Search/Exam
Nov 4, 2019
Communication to designated inventor
Search/Exam
Nov 4, 2019
Communication to designated inventor
Search/Exam
Oct 31, 2019
Oct 29, 2019
Oct 29, 2019
Priority search results copy provided by EPO
Search/Exam
Oct 24, 2019
(Electronic) Receipt
Search/Exam
Oct 24, 2019
Request for entry into the European phase
Search/Exam
Mar 5, 2019
Feb 14, 2019
Copy of the international search report
Search/Exam
Feb 14, 2019
Copy of the international search report
Search/Exam
Feb 14, 2019
Published international application - A1
Search/Exam
Oct 9, 2018
Oct 9, 2018
Oct 9, 2018
Aug 20, 2018
Aug 9, 2018
(Electronic) Receipt
PCTRO
Aug 9, 2018
Abstract
PCTRO
Aug 9, 2018
Claims
PCTRO
Aug 9, 2018
Description
PCTRO
Aug 9, 2018
Aug 9, 2018
Drawings
PCTRO
Aug 9, 2018
Aug 9, 2018