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The patent EP3494942 was granted to Unicharm on Aug 26, 2020. The application was filed on Dec 3, 2018 under application number EP18209871A. 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 |
|---|---|---|---|
| SCHOPF | May 26, 2021 | SAMSON & PARTNER | - |
| SCHOPF | May 26, 2021 | SAMSON & PARTNER PATENTANWALTE MBB | - |
| THE PROCTER & GAMBLE | May 26, 2021 | ELKINGTON AND FIFE | - |
| ESSITY HYGIENE AND HEALTH AKTIEBOLAG | May 21, 2021 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2007260148 |
| OPPOSITION | EP0758543 |
| OPPOSITION | EP1199059 |
| OPPOSITION | EP1219271 |
| OPPOSITION | EP2087871 |
| OPPOSITION | EP2275065 |
| OPPOSITION | EP2886093 |
| OPPOSITION | EP2965730 |
| OPPOSITION | JP2005034652 |
| OPPOSITION | JP2005334626 |
| OPPOSITION | JP2006122396 |
| OPPOSITION | US2007244455 |
| OPPOSITION | US2013046266 |
| OPPOSITION | US3860003 |
| OPPOSITION | WO2006068549 |
| OPPOSITION | WO2012170781 |
| OPPOSITION | WO2015031225 |
| OPPOSITION | WO2016104184 |
| OPPOSITION | WO2017074422 |
| SEARCH | EP1199059 |
| SEARCH | EP2087871 |
| SEARCH | EP2275065 |
| SEARCH | WO2006068549 |
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
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French translation of claims
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Text intended for grant (clean copy)
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Examination started
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(Electronic) Receipt
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Amended claims with annotations
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Letter accompanying subsequently filed items
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Notification of forthcoming publication
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European search opinion
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European search report
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Communication to designated inventor
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Communication to designated inventor
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Abstract
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Claims
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Description
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Request for grant of a European patent
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