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The patent EP3842299 was granted to Washtec Holding on Oct 2, 2024. The application was filed on Aug 14, 2015 under application number EP21157965A. 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 |
|---|---|---|---|
| OTTO CHRIST | Jun 30, 2025 | ERNICKE PATENT UND RECHTSANWALTE PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102007056701 |
| DESCRIPTION | DE1936889 |
| DESCRIPTION | DE19620684 |
| DESCRIPTION | DE29814758U |
| DESCRIPTION | JPH0379455 |
| DESCRIPTION | JPH08332921 |
| DESCRIPTION | US5715558 |
| OPPOSITION | DD261486 |
| OPPOSITION | DE102010011953 |
| OPPOSITION | DE1936889 |
| OPPOSITION | DE19524748 |
| OPPOSITION | DE2349861 |
| OPPOSITION | DE29814758U |
| OPPOSITION | DE4334132 |
| OPPOSITION | EP0808753 |
| OPPOSITION | EP0980802 |
| OPPOSITION | JP2004243840 |
| OPPOSITION | JP2005225407 |
| OPPOSITION | JP2008094250 |
| OPPOSITION | JPH0379455 |
| OPPOSITION | JPH05213163 |
| OPPOSITION | JPH066136U |
| OPPOSITION | JPH08332921 |
| OPPOSITION | JPH11129873 |
| OPPOSITION | JPH1164654 |
| OPPOSITION | US5930859 |
| OPPOSITION | WO03031241 |
| SEARCH | DE29814758U |
| SEARCH | JPH05213163 |
| SEARCH | JPH11129873 |
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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Authorisation
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Payment submission rejected
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Decision to grant a European patent
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Aug 20, 2024
(Electronic) Receipt
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Aug 20, 2024
English translation of the claims
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Aug 20, 2024
Filing of the translations of the claims
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Aug 20, 2024
French translation of claims
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Aug 20, 2024
Letter accompanying subsequently filed items
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Jun 9, 2024
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Apr 26, 2024
Text intended for grant (clean copy)
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(Electronic) Receipt
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Mar 20, 2024
Amended claims with annotations
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Mar 20, 2024
Claims
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Mar 20, 2024
Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Dec 21, 2023
Letter accompanying subsequently filed items
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Dec 21, 2023
Observations by third parties
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Nov 20, 2023
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Intention to grant (signatures)
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Nov 20, 2023
Text intended for grant (clean copy)
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Nov 20, 2023
Mar 6, 2023
(Electronic) Receipt
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Mar 6, 2023
Amended claims with annotations
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Mar 6, 2023
Claims
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Mar 6, 2023
Letter accompanying subsequently filed items
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Mar 6, 2023
Dec 14, 2022
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(Electronic) Receipt
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Dec 8, 2022
Letter accompanying subsequently filed items
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Dec 8, 2022
Aug 26, 2022
Annex to the communication
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Aug 26, 2022
Communication from the Examining Division
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Aug 22, 2022
Examination started
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Dec 14, 2021
(Electronic) Receipt
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Dec 14, 2021
Letter accompanying subsequently filed items
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Dec 14, 2021
Reply to Written Opinion prepared by the EPO
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Jul 5, 2021
Jun 2, 2021
Notification of forthcoming publication
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May 11, 2021
Refund of fees
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May 6, 2021
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European search opinion
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May 6, 2021
European search report
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May 6, 2021
Information on Search Strategy
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Apr 22, 2021
Search started
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Feb 18, 2021
Abstract
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Feb 18, 2021
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Claims
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Feb 18, 2021
Description
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Feb 18, 2021
Designation of inventor
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Feb 18, 2021
Drawings
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Feb 18, 2021
Priority search results
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Feb 18, 2021
Request for grant of a European patent
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Nov 28, 2017
Priority search results copy provided by EPO
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Mar 22, 2016