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The patent EP3542667 was granted to Trisa Holding on Mar 12, 2025. The application was filed on Apr 20, 2016 under application number EP19165630A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Mar 29, 2022 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE1632389 |
| DESCRIPTION | US2015034113 |
| DESCRIPTION | US3088148 |
| DESCRIPTION | US3369265 |
| DESCRIPTION | US3685080 |
| DESCRIPTION | US5365627 |
| DESCRIPTION | WO2008130246 |
| DESCRIPTION | WO2011073848 |
| DESCRIPTION | WO2014005659 |
| DESCRIPTION | WO2014169398 |
| OPPOSITION | DE4409817 |
| OPPOSITION | US2008118300 |
| OPPOSITION | US2011162155 |
| OPPOSITION | US2013000061 |
| OPPOSITION | US4811445 |
| OPPOSITION | US6546585 |
| OPPOSITION | US6821119 |
| OPPOSITION | US7137166 |
| OPPOSITION | US8769758 |
| OPPOSITION | WO2013057901 |
| OPPOSITION | WO2015061651 |
| SEARCH | EP1790312 |
| SEARCH | US2013000061 |
| SEARCH | US6546585 |
| SEARCH | WO03073958 |
| SEARCH | WO2013076904 |
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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Feb 13, 2025
Feb 13, 2025
Sep 27, 2024
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Refund of fees
Search/Exam
Jun 19, 2024
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May 28, 2024
(Electronic) Receipt
Appeal
May 28, 2024
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May 28, 2024
Withdrawal of an appeal
Appeal
Mar 14, 2024
Mar 8, 2024
(Electronic) Receipt
Appeal
Mar 8, 2024
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(Electronic) Receipt
Appeal
Jan 9, 2024
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Notice of appeal
Appeal
Nov 10, 2023
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OPPO
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Decision to grant a European patent
Search/Exam
May 21, 2021
(Electronic) Receipt
Search/Exam
May 21, 2021
English translation of the claims
Search/Exam
May 21, 2021
French translation of claims
Search/Exam
May 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 16, 2021
(Electronic) Receipt
Search/Exam
Apr 16, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 12, 2021
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Intention to grant (signatures)
Search/Exam
Jan 12, 2021
Text intended for grant (clean copy)
Search/Exam
Jan 12, 2021
Nov 18, 2020
(Electronic) Receipt
Search/Exam
Nov 18, 2020
Amended claims with annotations
Search/Exam
Nov 18, 2020
Amended description with annotations
Search/Exam
Nov 18, 2020
Claims
Search/Exam
Nov 18, 2020
Description
Search/Exam
Nov 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 18, 2020
Jul 9, 2020
Annex to the communication
Search/Exam
Jul 9, 2020
Communication from the Examining Division
Search/Exam
Jun 10, 2020
Examination started
Search/Exam
Apr 17, 2020
(Electronic) Receipt
Search/Exam
Apr 17, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 13, 2020
(Electronic) Receipt
Search/Exam
Mar 13, 2020
Mar 13, 2020
Amended claims with annotations
Search/Exam
Mar 13, 2020
Mar 13, 2020
Amended description with annotations
Search/Exam
Mar 13, 2020
Amendments received before examination
Search/Exam
Mar 13, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 30, 2019
Aug 28, 2019
Notification of forthcoming publication
Search/Exam
Aug 22, 2019
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European search opinion
Search/Exam
Aug 22, 2019
European search report
Search/Exam
Aug 22, 2019
Information on Search Strategy
Search/Exam
Aug 7, 2019
Amendments not yet acceptable
Search/Exam
Jul 24, 2019
(Electronic) Receipt
Search/Exam
Jul 24, 2019
Annex
Search/Exam
Jul 24, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 24, 2019
Jun 14, 2019
Annex to the communication
Search/Exam
Jun 14, 2019
Jun 6, 2019
Search started
Search/Exam
May 20, 2019
Communication to designated inventor
Search/Exam
May 20, 2019
Communication to designated inventor
Search/Exam
May 20, 2019
Communication to designated inventor
Search/Exam
Apr 3, 2019
Priority search results copy provided by EPO
Search/Exam
Mar 27, 2019
Abstract
Search/Exam
Mar 27, 2019
Mar 27, 2019
Claims
Search/Exam
Mar 27, 2019
Description
Search/Exam
Mar 27, 2019
Designation of inventor
Search/Exam
Mar 27, 2019
Drawings
Search/Exam
Mar 27, 2019
Request for grant of a European patent
Search/Exam
Nov 28, 2016