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The patent EP3914559 was granted to Judo Wasseraufbereitung on Oct 1, 2025. The application was filed on Jan 20, 2020 under application number EP20701941A. 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 |
|---|---|---|---|
| GRUNBECK WASSERAUFBEREITUNG | Mar 6, 2023 | CHARRIER RAPP & LIEBAU | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102016208649 |
| DESCRIPTION | DE19961406 |
| DESCRIPTION | DE4227135 |
| DESCRIPTION | EP1110589 |
| DESCRIPTION | EP2385020 |
| DESCRIPTION | EP3083503 |
| DESCRIPTION | WO2017117026 |
| INTERNATIONAL-SEARCH-REPORT | EP0184773 |
| INTERNATIONAL-SEARCH-REPORT | US2016341323 |
| INTERNATIONAL-SEARCH-REPORT | US2017197854 |
| INTERNATIONAL-SEARCH-REPORT | US2017362101 |
| OPPOSITION | AU1630597B |
| OPPOSITION | AU1630597 |
| OPPOSITION | DE102011119021 |
| OPPOSITION | DE4227135 |
| OPPOSITION | EP0184773 |
| OPPOSITION | US2016341323 |
| OPPOSITION | US2017197854 |
| OPPOSITION | US2017362101 |
| OPPOSITION | US8961797 |
| OPPOSITION | WO2017117026 |
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
May 3, 2022
(Electronic) Receipt
Search/Exam
May 3, 2022
English translation of the claims
Search/Exam
May 3, 2022
French translation of claims
Search/Exam
May 3, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 5, 2022
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Intention to grant (signatures)
Search/Exam
Jan 5, 2022
Text intended for grant (clean copy)
Search/Exam
Jan 5, 2022
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Examination started
Search/Exam
Nov 4, 2021
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(Electronic) Receipt
Search/Exam
Jun 14, 2021
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Amended claims with annotations
Search/Exam
Jun 14, 2021
Priority search results
Search/Exam
Jun 14, 2021
Request for entry into the European phase
Search/Exam
Jun 7, 2021
Information on entry into European phase
Search/Exam
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Notification of election of EPO
Search/Exam
Jul 30, 2020
Copy of the international search report
Search/Exam
Jul 30, 2020
Copy of the international search report
Search/Exam
Jul 30, 2020
Published international application - A1
Search/Exam
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Written opinion
PCT2
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PCT demand form
PCT2
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(Electronic) Receipt
PCTRO
Jan 20, 2020
Abstract
PCTRO
Jan 20, 2020
Claims
PCTRO
Jan 20, 2020
Description
PCTRO
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Drawings
PCTRO
Jan 20, 2020