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The patent EP3841245 was granted to Valmet on Mar 6, 2024. The application was filed on May 29, 2019 under application number EP19852122A. 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 |
|---|---|---|---|
| SEKAB E TECHNOLOGY | Dec 5, 2024 | KRANSELL & WENNBORG KB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2011281298 |
| DESCRIPTION | WO2017088061 |
| EXAMINATION | US2009061495 |
| INTERNATIONAL-SEARCH-REPORT | EP3399095 |
| INTERNATIONAL-SEARCH-REPORT | JP2012000022 |
| INTERNATIONAL-SEARCH-REPORT | US2009061495 |
| INTERNATIONAL-SEARCH-REPORT | US2012211183 |
| INTERNATIONAL-SEARCH-REPORT | US2013029406 |
| INTERNATIONAL-SEARCH-REPORT | US2014288298 |
| INTERNATIONAL-SEARCH-REPORT | US2016076198 |
| INTERNATIONAL-SEARCH-REPORT | WO2004005608 |
| INTERNATIONAL-SEARCH-REPORT | WO2010022511 |
| INTERNATIONAL-SEARCH-REPORT | WO2015199604 |
| INTERNATIONAL-SEARCH-REPORT | WO2018202673 |
| OPPOSITION | EP3333310 |
| OPPOSITION | JP2012000022 |
| OPPOSITION | US2009061495 |
| OPPOSITION | US2011281298 |
| OPPOSITION | US2012211183 |
| OPPOSITION | US2013029406 |
| OPPOSITION | US2014288298 |
| OPPOSITION | US2016076198 |
| OPPOSITION | WO2004005608 |
| OPPOSITION | WO2010022511 |
| OPPOSITION | WO2013186184 |
| OPPOSITION | WO2015199604 |
| OPPOSITION | WO2017088061 |
| OPPOSITION | WO2018202673 |
| OTHER | US2009061495 |
| SEARCH | EP3333310 |
| SEARCH | US2011281298 |
| SEARCH | WO2017088061 |
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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Mar 19, 2024
Feb 8, 2024
Decision to grant a European patent
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Jan 29, 2024
(Electronic) Receipt
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Jan 29, 2024
Filing of the translations of the claims
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Jan 29, 2024
French translation of claims
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Jan 29, 2024
German translation of the claims
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Jan 29, 2024
Letter accompanying subsequently filed items
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Dec 22, 2023
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Dec 22, 2023
Intention to grant (signatures)
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Dec 22, 2023
Text intended for grant (clean copy)
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Dec 22, 2023
Sep 18, 2023
(Electronic) Receipt
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Sep 18, 2023
Amended claims with annotations
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Sep 18, 2023
Claims
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Sep 18, 2023
Letter accompanying subsequently filed items
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Sep 18, 2023
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Jul 4, 2023
Annex to the communication
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Jul 4, 2023
Communication from the Examining Division
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(Electronic) Receipt
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Jun 26, 2023
Letter accompanying subsequently filed items
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Jun 26, 2023
Non-patent literature filed by a third party
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Jun 26, 2023
Observations by third parties
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Jun 14, 2023
(Electronic) Receipt
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Jun 14, 2023
(Electronic) Receipt
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Jun 14, 2023
Amended description with annotations
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Jun 14, 2023
Amended drawings with annotations
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Jun 14, 2023
Description
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Jun 14, 2023
Drawings
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Jun 14, 2023
Letter accompanying subsequently filed items
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Jun 14, 2023
Letter accompanying subsequently filed items
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Jun 14, 2023
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Jun 5, 2023
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May 30, 2023
(Electronic) Receipt
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May 30, 2023
Letter accompanying subsequently filed items
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May 30, 2023
Observations by third parties
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May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
Intention to grant (signatures)
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May 19, 2023
Text intended for grant (clean copy)
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May 19, 2023
Feb 15, 2023
Examination started
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Dec 15, 2022
(Electronic) Receipt
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Dec 15, 2022
(Electronic) Receipt
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Dec 15, 2022
Dec 15, 2022
Amended claims with annotations
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Dec 15, 2022
Amendments received before examination
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Dec 15, 2022
Letter accompanying subsequently filed items
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Dec 15, 2022
Letter accompanying subsequently filed items
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Jun 8, 2022
May 18, 2022
May 18, 2022
European search opinion
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May 18, 2022
Information on Search Strategy
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May 18, 2022
Supplementary European search report
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May 5, 2022
Search started
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Jun 2, 2021
Mar 31, 2021
Mar 29, 2021
Communication to designated inventor
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Mar 29, 2021
Communication to designated inventor
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Mar 29, 2021
Communication to designated inventor
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Mar 29, 2021
Communication to designated inventor
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Mar 1, 2021
Feb 5, 2021
(Electronic) Receipt
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Feb 5, 2021
Feb 5, 2021
Amended claims with annotations
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Feb 5, 2021
Priority search results
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Feb 5, 2021
Request for entry into the European phase
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Jan 15, 2021
Information on entry into European phase
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May 8, 2020
Notification of election of EPO
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Mar 16, 2020
Feb 27, 2020
Copy of the international search report
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Feb 27, 2020
Published international application - A1
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