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The patent EP3789406 was granted to Circulose on Jul 26, 2023. The application was filed on Oct 16, 2017 under application number EP20197206A. 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 |
|---|---|---|---|
| SODRA SKOGSAGAMA EKONOMISK FORENING | Apr 26, 2024 | VALEA | ADMISSIBLE |
| ANDRITZ | Apr 25, 2024 | DEVINE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN102747622 |
| DESCRIPTION | EP0717131 |
| DESCRIPTION | GB615741 |
| DESCRIPTION | US2004000012 |
| DESCRIPTION | US3318657 |
| DESCRIPTION | US5464501 |
| DESCRIPTION | US5609676 |
| DESCRIPTION | WO2010124944 |
| DESCRIPTION | WO2012057684 |
| DESCRIPTION | WO2013004909 |
| DESCRIPTION | WO2013124265 |
| DESCRIPTION | WO2014045062 |
| DESCRIPTION | WO2014162062 |
| DESCRIPTION | WO2015077807 |
| OPPOSITION | GB615741 |
| OPPOSITION | SE1850899 |
| OPPOSITION | US2004000012 |
| OPPOSITION | US3318657 |
| OPPOSITION | US5609676 |
| OPPOSITION | WO2013124265 |
| OPPOSITION | WO2015077807 |
| SEARCH | EP0717131 |
| SEARCH | US2004000012 |
| SEARCH | WO2012057684 |
| SEARCH | WO2013124265 |
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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Search/Exam
Jan 21, 2025
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Dec 9, 2024
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General enquiry
OPPO
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Aug 8, 2023
Jun 29, 2023
Decision to grant a European patent
Search/Exam
Jun 16, 2023
(Electronic) Receipt
Search/Exam
Jun 16, 2023
Filing of the translations of the claims
Search/Exam
Jun 16, 2023
French translation of claims
Search/Exam
Jun 16, 2023
German translation of the claims
Search/Exam
Mar 29, 2023
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Intention to grant (signatures)
Search/Exam
Mar 29, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 29, 2023
Aug 16, 2022
(Electronic) Receipt
Search/Exam
Aug 16, 2022
Amended claims with annotations
Search/Exam
Aug 16, 2022
Claims
Search/Exam
Aug 16, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 16, 2022
Mar 11, 2022
Mar 7, 2022
(Electronic) Receipt
Search/Exam
Mar 7, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 7, 2022
Feb 18, 2022
Annex to the communication
Search/Exam
Feb 18, 2022
Communication from the Examining Division
Search/Exam
Feb 15, 2022
Examination started
Search/Exam
Sep 8, 2021
(Electronic) Receipt
Search/Exam
Sep 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 8, 2021
Reply to Written Opinion prepared by the EPO
Search/Exam
Mar 15, 2021
Feb 10, 2021
Notification of forthcoming publication
Search/Exam
Feb 8, 2021
Refund of fees
Search/Exam
Feb 4, 2021
Feb 4, 2021
European search opinion
Search/Exam
Feb 4, 2021
European search report
Search/Exam
Feb 4, 2021
Information on Search Strategy
Search/Exam
Jan 21, 2021
Search started
Search/Exam
Nov 13, 2020
Communication to designated inventor
Search/Exam
Nov 13, 2020
Communication to designated inventor
Search/Exam
Nov 13, 2020
Communication to designated inventor
Search/Exam
Sep 21, 2020
Abstract
Search/Exam
Sep 21, 2020
Sep 21, 2020
Claims
Search/Exam
Sep 21, 2020
Description
Search/Exam
Sep 21, 2020
Designation of inventor
Search/Exam
Sep 21, 2020
Request for grant of a European patent
Search/Exam
May 16, 2018