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The patent EP3575455 was granted to Andritz Asselin Thibeau on Oct 5, 2022. The application was filed on May 21, 2019 under application number EP19175781A. 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 |
|---|---|---|---|
| AUTEFA SOLUTIONS GERMANY | Jun 30, 2023 | 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 | WO9924650 |
| OPPOSITION | EP0371948 |
| OPPOSITION | EP0659220 |
| OPPOSITION | EP1057906 |
| OPPOSITION | EP1285982 |
| OPPOSITION | EP1381721 |
| OPPOSITION | EP1589132 |
| OPPOSITION | EP1936016 |
| OPPOSITION | EP2085504 |
| OPPOSITION | WO02101130 |
| OPPOSITION | WO2004013390 |
| OPPOSITION | WO2015128391 |
| OPPOSITION | WO2018095766 |
| OPPOSITION | WO9924650 |
| SEARCH | EP1285982 |
| SEARCH | EP1589132 |
| SEARCH | EP2085504 |
| SEARCH | WO02101130 |
| SEARCH | WO9924650 |
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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Jan 7, 2026
Jan 7, 2026
Dec 19, 2025
(Electronic) Receipt
Appeal
Dec 19, 2025
Dec 19, 2025
Notice of appeal
Appeal
Nov 5, 2025
Nov 5, 2025
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Means of redress
OPPO
Nov 5, 2025
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Authorisation
OPPO
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Oct 17, 2022
Sep 8, 2022
Decision to grant a European patent
Search/Exam
Aug 30, 2022
(Electronic) Receipt
Search/Exam
Aug 30, 2022
English translation of the claims
Search/Exam
Aug 30, 2022
Filing of the translations of the claims
Search/Exam
Aug 30, 2022
German translation of the claims
Search/Exam
Aug 30, 2022
Letter accompanying subsequently filed items
Search/Exam
May 25, 2022
May 25, 2022
May 25, 2022
Intention to grant (signatures)
Search/Exam
May 25, 2022
Text intended for grant (clean copy)
Search/Exam
May 25, 2022
Apr 12, 2022
Examination started
Search/Exam
Jun 1, 2020
(Electronic) Receipt
Search/Exam
Jun 1, 2020
Jun 1, 2020
Amended claims with annotations
Search/Exam
Jun 1, 2020
Jun 1, 2020
Amendments received before examination
Search/Exam
Jun 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 9, 2019
Nov 6, 2019
Notification of forthcoming publication
Search/Exam
Sep 6, 2019
Refund of fees
Search/Exam
Sep 4, 2019
Sep 4, 2019
European search opinion
Search/Exam
Sep 4, 2019
European search report
Search/Exam
Sep 4, 2019
Information on Search Strategy
Search/Exam
Aug 30, 2019
Priority search results copy provided by EPO
Search/Exam
Aug 28, 2019
Modified abstract
Search/Exam
Aug 14, 2019
Communication to designated inventor
Search/Exam
Aug 14, 2019
Communication to designated inventor
Search/Exam
Jul 15, 2019
Letter concerning the priority
Search/Exam
Jul 15, 2019
Priority document
Search/Exam
May 21, 2019
Abstract
Search/Exam
May 21, 2019
May 21, 2019
Claims
Search/Exam
May 21, 2019
Description
Search/Exam
May 21, 2019
Designation of inventor
Search/Exam
May 21, 2019
Drawings
Search/Exam
May 21, 2019
Priority search results
Search/Exam
May 21, 2019
Request for grant of a European patent
Search/Exam