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The patent EP3844053 was granted to Sika Technology on Jun 7, 2023. The application was filed on Aug 27, 2019 under application number EP19758419A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| L & L PRODUCTS EUROPE | Mar 7, 2024 | KUTZENBERGER WOLFF & PARTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP3281970 |
| EXAMINATION | DE10148770 |
| EXAMINATION | WO0124989 |
| INTERNATIONAL-SEARCH-REPORT | DE10143550 |
| INTERNATIONAL-SEARCH-REPORT | EP1591224 |
| INTERNATIONAL-SEARCH-REPORT | EP3281970 |
| INTERNATIONAL-SEARCH-REPORT | GB2463858 |
| INTERNATIONAL-SEARCH-REPORT | WO2017182606 |
| OPPOSITION | DE10143550 |
| OPPOSITION | EP1591224 |
| OPPOSITION | EP3281970 |
| OPPOSITION | EP3421331 |
| OPPOSITION | EP3466800 |
| OPPOSITION | EP3486146 |
| OPPOSITION | GB2463858 |
| OPPOSITION | US2003137162 |
| OPPOSITION | US2004011282 |
| OPPOSITION | US2010092733 |
| OPPOSITION | US2015352930 |
| OPPOSITION | US2018037272 |
| OPPOSITION | US5358397 |
| OPPOSITION | US5968995 |
| OPPOSITION | US6103341 |
| OPPOSITION | US6494525 |
| OPPOSITION | US7043815 |
| OPPOSITION | US7077461 |
| OPPOSITION | US8028799 |
| OPPOSITION | US9290211 |
| OPPOSITION | WO2010010167 |
| OPPOSITION | WO2010023324 |
| OPPOSITION | WO2014124924 |
| OPPOSITION | WO2017182606 |
| OPPOSITION | WO2018017978 |
| OPPOSITION | WO9937506 |
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.
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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
Search/Exam
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English translation of the claims
Search/Exam
Apr 24, 2023
Filing of the translations of the claims
Search/Exam
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French translation of claims
Search/Exam
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Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
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Text intended for grant (clean copy)
Search/Exam
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Examination started
Search/Exam
Oct 5, 2021
(Electronic) Receipt
Search/Exam
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Amended claims with annotations
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Oct 5, 2021
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Letter accompanying subsequently filed items
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Priority search results copy provided by EPO
Search/Exam
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(Electronic) Receipt
Search/Exam
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Request for entry into the European phase
Search/Exam
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Information on entry into European phase
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Copy of the international search report
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Copy of the international search report
Search/Exam
Mar 5, 2020
Published international application - A1
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Sep 4, 2019
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(Electronic) Receipt
PCTRO
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Abstract
PCTRO
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Claims
PCTRO
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Description
PCTRO
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PCTRO
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