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The patent EP3830336 was granted to Voith Patent on Feb 22, 2023. The application was filed on Jul 9, 2019 under application number EP19737727A. 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 |
|---|---|---|---|
| ANDRITZ KUSTERS | Nov 20, 2023 | SPARING ROHL HENSELER | ADMISSIBLE |
| VALMET | Nov 20, 2023 | TBK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | FI20170000013 |
| DESCRIPTION | DE102011076718 |
| INTERNATIONAL-SEARCH-REPORT | DE102011017672 |
| INTERNATIONAL-SEARCH-REPORT | DE102016114968 |
| INTERNATIONAL-SEARCH-REPORT | EP2273009 |
| INTERNATIONAL-SEARCH-REPORT | EP2518212 |
| INTERNATIONAL-SEARCH-REPORT | US2003221808 |
| INTERNATIONAL-SEARCH-REPORT | US2009317549 |
| INTERNATIONAL-SEARCH-REPORT | US5887517 |
| INTERNATIONAL-SEARCH-REPORT | WO2012072873 |
| OPPOSITION | DE10012344 |
| OPPOSITION | DE102006057870 |
| OPPOSITION | DE102008040057 |
| OPPOSITION | DE102009012920 |
| OPPOSITION | DE102011017672 |
| OPPOSITION | DE102015204975 |
| OPPOSITION | DE102016114968 |
| OPPOSITION | DE102018100924 |
| OPPOSITION | DE19716647 |
| OPPOSITION | DE29924891U |
| OPPOSITION | DE4211401 |
| OPPOSITION | DE69217603T |
| OPPOSITION | DE9100291U |
| OPPOSITION | EP0454643 |
| OPPOSITION | EP1964972 |
| OPPOSITION | EP2273009 |
| OPPOSITION | EP2518212 |
| OPPOSITION | EP2981647 |
| OPPOSITION | FI20021348 |
| OPPOSITION | FI20021348L |
| OPPOSITION | GB2103115 |
| OPPOSITION | JP2001300386 |
| OPPOSITION | JP2002263540 |
| OPPOSITION | US2003221808 |
| OPPOSITION | US2005039871 |
| OPPOSITION | US2009317549 |
| OPPOSITION | US2011003079 |
| OPPOSITION | US2016038969 |
| OPPOSITION | US4093016 |
| OPPOSITION | US5887517 |
| OPPOSITION | WO0078468 |
| OPPOSITION | WO2004001133 |
| OPPOSITION | WO2011151238 |
| OPPOSITION | WO2012072873 |
| OPPOSITION | WO2015036391 |
| OPPOSITION | WO9729238 |
| OPPOSITION | WO9747810 |
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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Dec 3, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jul 8, 2025
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Notice of appeal
Appeal
Jul 3, 2025
(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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OPPO
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Decision to grant a European patent
Search/Exam
Jan 11, 2023
(Electronic) Receipt
Search/Exam
Jan 11, 2023
Filing of the translations of the claims
Search/Exam
Jan 11, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2023
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Intention to grant (signatures)
Search/Exam
Jan 4, 2023
Text intended for grant (clean copy)
Search/Exam
Jan 4, 2023
Nov 3, 2022
(Electronic) Receipt
Search/Exam
Nov 3, 2022
Amended claims with annotations
Search/Exam
Nov 3, 2022
Claims
Search/Exam
Nov 3, 2022
French translation of claims
Search/Exam
Nov 3, 2022
German translation of the claims
Search/Exam
Nov 3, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 3, 2022
Jul 26, 2022
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Jul 26, 2022
Intention to grant (signatures)
Search/Exam
Jul 26, 2022
Text intended for grant (clean copy)
Search/Exam
Jul 26, 2022
Jun 23, 2022
Examination started
Search/Exam
May 12, 2021
Mar 9, 2021
Communication to designated inventor
Search/Exam
Mar 9, 2021
Communication to designated inventor
Search/Exam
Feb 1, 2021
Feb 1, 2021
Dec 10, 2020
Information on entry into European phase
Search/Exam
Nov 30, 2020
(Electronic) Receipt
Search/Exam
Nov 30, 2020
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Priority search results
Search/Exam
Nov 30, 2020
Request for entry into the European phase
Search/Exam
Sep 10, 2020
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Jul 14, 2020
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Written opinion
PCT2
Jul 10, 2020
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Notification of election of EPO
Search/Exam
May 28, 2020
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Annex
PCT2
May 13, 2020
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PCT demand form
PCT2
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Feb 17, 2020
Jan 30, 2020
Copy of the international search report
Search/Exam
Jan 30, 2020
Published international application - A1
Search/Exam
Nov 4, 2019
Jul 23, 2019
Jul 9, 2019
(Electronic) Receipt
PCTRO
Jul 9, 2019
Abstract
PCTRO
Jul 9, 2019
Claims
PCTRO
Jul 9, 2019
Description
PCTRO
Jul 9, 2019
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Drawings
PCTRO
Jul 9, 2019