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The patent EP3652027 was granted to Washtec Holding on Apr 14, 2021. The application was filed on Jul 9, 2018 under application number EP18739518A. 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 |
|---|---|---|---|
| OTTO CHRIST | Jan 14, 2022 | 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 | EP2024238 |
| DESCRIPTION | EP2136938 |
| DESCRIPTION | EP2885169 |
| INTERNATIONAL-SEARCH-REPORT | US2017100499 |
| INTERNATIONAL-SEARCH-REPORT | US2017185092 |
| INTERNATIONAL-SEARCH-REPORT | US6372053 |
| OPPOSITION | EP3652027 |
| OPPOSITION | US2003127534 |
| OPPOSITION | US2017100499 |
| OPPOSITION | US2017185092 |
| OPPOSITION | US6372053 |
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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Authorisation
OPPO
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Apr 28, 2021
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Decision to grant a European patent
Search/Exam
Mar 4, 2021
(Electronic) Receipt
Search/Exam
Mar 4, 2021
English translation of the claims
Search/Exam
Mar 4, 2021
Filing of the translations of the claims
Search/Exam
Mar 4, 2021
French translation of claims
Search/Exam
Jan 13, 2021
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Intention to grant (signatures)
Search/Exam
Jan 13, 2021
Text intended for grant (clean copy)
Search/Exam
Jan 13, 2021
Dec 4, 2020
Examination started
Search/Exam
Oct 16, 2020
(Electronic) Receipt
Search/Exam
Oct 16, 2020
Priority search results
Search/Exam
Oct 16, 2020
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(Electronic) Receipt
Search/Exam
Aug 4, 2020
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Amended description with annotations
Search/Exam
Aug 4, 2020
Amendments received before examination
Search/Exam
Aug 4, 2020
Letter accompanying subsequently filed items
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Feb 7, 2020
(Electronic) Receipt
Search/Exam
Feb 7, 2020
Request for entry into the European phase
Search/Exam
Jan 31, 2020
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Submission concerning representation
Search/Exam
Nov 22, 2019
Information on entry into European phase
Search/Exam
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Written opinion
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Notification of election of EPO
Search/Exam
Feb 5, 2019
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Copy of the international search report
Search/Exam
Jan 17, 2019
Copy of the international search report
Search/Exam
Jan 17, 2019
Published international application - A1
Search/Exam
Jan 11, 2019
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PCT demand form
PCT2
Jan 7, 2019
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(Electronic) Receipt
PCTRO
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(Electronic) Receipt
PCTRO
Jul 9, 2018
Abstract
PCTRO
Jul 9, 2018
Claims
PCTRO
Jul 9, 2018
Description
PCTRO
Jul 9, 2018
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Drawings
PCTRO
Jul 9, 2018