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The patent EP3755779 was granted to Henkel on Mar 30, 2022. The application was filed on Feb 12, 2019 under application number EP19703348A. 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 |
|---|---|---|---|
| THE PROCTER & GAMBLE | Dec 29, 2022 | GILL JENNINGS & EVERY | ADMISSIBLE |
| BASF | Dec 21, 2022 | BASF ASSOCIATION | WITHDRAWN |
| HENKEL | Dec 15, 2022 | VIERING | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0070074 |
| DESCRIPTION | EP0328177 |
| DESCRIPTION | EP0384070 |
| DESCRIPTION | EP0458397 |
| DESCRIPTION | US4751015 |
| DESCRIPTION | US5041232 |
| DESCRIPTION | US5047163 |
| DESCRIPTION | WO2005003274 |
| DESCRIPTION | WO2006027086 |
| DESCRIPTION | WO2006032327 |
| DESCRIPTION | WO2006032397 |
| DESCRIPTION | WO2006045275 |
| DESCRIPTION | WO2008017570 |
| DESCRIPTION | WO2008087497 |
| DESCRIPTION | WO2008141880 |
| DESCRIPTION | WO2009132870 |
| DESCRIPTION | WO2009141173 |
| DESCRIPTION | WO2010099997 |
| DESCRIPTION | WO2010102861 |
| DESCRIPTION | WO2010148624 |
| DESCRIPTION | WO2011011799 |
| DESCRIPTION | WO2014086662 |
| INTERNATIONAL-SEARCH-REPORT | EP0678572 |
| INTERNATIONAL-SEARCH-REPORT | US2012165237 |
| INTERNATIONAL-SEARCH-REPORT | US8198228 |
| OPPOSITION | EP2768935 |
| OPPOSITION | EP3138895 |
| OPPOSITION | US2013284210 |
| OPPOSITION | WO0112768 |
| OPPOSITION | WO2011133484 |
| OPPOSITION | WO2013056996 |
| OPPOSITION | WO2013160132 |
| OPPOSITION | WO2014161786 |
| OPPOSITION | WO2015121170 |
| OPPOSITION | WO2017019271 |
| OPPOSITION | WO2017097637 |
| OPPOSITION | WO2017100450 |
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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Oct 29, 2025
Refund of fees
Appeal
Oct 28, 2025
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(Electronic) Receipt
Appeal
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Withdrawal of an appeal
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Aug 11, 2025
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Reply to appeal
Appeal
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Notice of appeal
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Authorisation
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Document concerning representation
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Jan 9, 2023
General authorisation
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Letter accompanying subsequently filed items
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Decision to grant a European patent
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(Electronic) Receipt
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Jan 4, 2022
French translation of claims
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Jan 4, 2022
German translation of the claims
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Jan 4, 2022
Letter accompanying subsequently filed items
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Oct 4, 2021
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(Electronic) Receipt
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Aug 19, 2021
Amended claims with annotations
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Aug 19, 2021
Claims
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Aug 19, 2021
Letter accompanying subsequently filed items
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Letter to the Legal Division
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Jun 30, 2021
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May 31, 2021
Annex
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May 31, 2021
Cover sheet for fax transmission
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May 28, 2021
Annex
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May 28, 2021
Cover sheet for fax transmission
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May 28, 2021
Letter to the Legal Division
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Apr 14, 2021
Examination started
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Mar 31, 2021
Communication from the Legal Division
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Mar 24, 2021
Annexes in respect of a client data request
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Mar 24, 2021
Letter accompanying subsequently filed items
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Mar 23, 2021
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Mar 23, 2021
Letter accompanying subsequently filed items
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Mar 23, 2021
Mar 16, 2021
Annexes in respect of a client data request
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Mar 16, 2021
Letter accompanying subsequently filed items
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Mar 16, 2021
Mar 12, 2021
Communication from the Legal Division
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Mar 10, 2021
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Annexes in respect of a client data request
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Annexes in respect of a client data request
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Mar 5, 2021
Annexes in respect of a client data request
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Mar 5, 2021
Letter accompanying subsequently filed items
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Mar 5, 2021
Letter accompanying subsequently filed items
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Mar 5, 2021
Letter accompanying subsequently filed items
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Mar 5, 2021
Letter accompanying subsequently filed items
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Mar 5, 2021
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Feb 1, 2021
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Feb 1, 2021
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Feb 1, 2021
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Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Annexes in respect of a client data request
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Feb 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2021
Dec 2, 2020
Oct 15, 2020
Oct 7, 2020
Letter which had not been notified
Search/Exam
Oct 1, 2020
Document concerning representation
Search/Exam
Sep 28, 2020
Communication to designated inventor
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Sep 28, 2020
Communication to designated inventor
Search/Exam
Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 23, 2020
Priority search results copy provided by EPO
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Sep 7, 2020
Aug 17, 2020
(Electronic) Receipt
Search/Exam
Aug 17, 2020
Request for entry into the European phase
Search/Exam
Jul 3, 2020
Information on entry into European phase
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Dec 10, 2019
Dec 10, 2019
Dec 10, 2019
Notification of the recording of a change
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Sep 16, 2019
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Aug 29, 2019
Copy of the international search report
Search/Exam
Aug 29, 2019
Published international application - A1
Search/Exam
Apr 12, 2019
ISR: cited documents
PCTISA
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(Electronic) Receipt
PCTRO
Feb 12, 2019
Abstract
PCTRO
Feb 12, 2019
Feb 12, 2019
Claims
PCTRO
Feb 12, 2019
Description
PCTRO
Feb 12, 2019
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