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The patent EP3802915 was granted to Henkel on Nov 20, 2024. The application was filed on Jun 7, 2019 under application number EP19728707A. 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 |
|---|---|---|---|
| CHEMETALL | Aug 14, 2025 | STEFFAN & KIEHNE PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO9839498 |
| INTERNATIONAL-SEARCH-REPORT | EP1378586 |
| INTERNATIONAL-SEARCH-REPORT | EP1566466 |
| INTERNATIONAL-SEARCH-REPORT | US2015064445 |
| OPPOSITION | EP1378586 |
| OPPOSITION | EP1566466 |
| OPPOSITION | EP4410564 |
| OPPOSITION | US2003125393 |
| OPPOSITION | US2015064445 |
| OPPOSITION | WO2017162475 |
| OPPOSITION | WO2017189627 |
| OPPOSITION | WO2018192709 |
| OPPOSITION | WO2023052213 |
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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Description
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Decision to grant a European patent
Search/Exam
Oct 14, 2024
(Electronic) Receipt
Search/Exam
Oct 14, 2024
English translation of the claims
Search/Exam
Oct 14, 2024
Filing of the translations of the claims
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Oct 14, 2024
French translation of claims
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Jul 12, 2024
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Intention to grant (signatures)
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Jul 12, 2024
Text intended for grant (clean copy)
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Jul 12, 2024
Mar 14, 2024
(Electronic) Receipt
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Mar 14, 2024
Amended claims with annotations
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Mar 14, 2024
Claims
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Mar 14, 2024
Letter accompanying subsequently filed items
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Mar 14, 2024
Nov 16, 2023
Annex to the communication
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Nov 16, 2023
Communication from the Examining Division
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Nov 10, 2023
Examination started
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Jun 23, 2021
(Electronic) Receipt
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Jun 23, 2021
Abstract
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Jun 23, 2021
Abstract
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Jun 23, 2021
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Amended claims with annotations
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Jun 23, 2021
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Amended description with annotations
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Jun 23, 2021
Amendments received before examination
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Jun 23, 2021
Letter accompanying subsequently filed items
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Mar 19, 2021
Letter accompanying subsequently filed items
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Mar 19, 2021
Mar 17, 2021
Mar 1, 2021
Communication to designated inventor
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Feb 23, 2021
(Electronic) Receipt
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Feb 23, 2021
Letter accompanying subsequently filed items
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Feb 23, 2021
Letter concerning the inventor
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Feb 22, 2021
Feb 16, 2021
Letter which had not been notified
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Jan 20, 2021
Jan 15, 2021
Communication to designated inventor
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Jan 15, 2021
Communication to designated inventor
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Jan 15, 2021
Communication to designated inventor
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Jan 15, 2021
Communication to designated inventor
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Jan 15, 2021
Communication to designated inventor
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Jan 15, 2021
Communication to designated inventor
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Jan 15, 2021
Communication to designated inventor
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Jan 13, 2021
Priority search results copy provided by EPO
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Jan 11, 2021
Nov 11, 2020
(Electronic) Receipt
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Nov 11, 2020
Request for entry into the European phase
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Oct 23, 2020
Information on entry into European phase
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Jan 10, 2020
Dec 19, 2019
Copy of the international search report
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Dec 19, 2019
Copy of the international search report
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Dec 19, 2019
Published international application - A1
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Jun 18, 2019
Jun 7, 2019
(Electronic) Receipt
PCTRO
Jun 7, 2019
Abstract
PCTRO
Jun 7, 2019
Claims
PCTRO
Jun 7, 2019
Description
PCTRO
Jun 7, 2019
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