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The patent EP2640893 was granted to Fiberlean on Feb 24, 2021. The application was filed on Nov 9, 2011 under application number EP11791031A. 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 |
|---|---|---|---|
| STORA ENSO OYJ | May 18, 2018 | STEINRUD | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0614948 |
| DESCRIPTION | US5576617 |
| INTERNATIONAL-SEARCH-REPORT | EP1538257 |
| INTERNATIONAL-SEARCH-REPORT | EP2236664 |
| INTERNATIONAL-SEARCH-REPORT | GB2260146 |
| INTERNATIONAL-SEARCH-REPORT | US5964983 |
| INTERNATIONAL-SEARCH-REPORT | US6183596 |
| INTERNATIONAL-SEARCH-REPORT | US6202946 |
| INTERNATIONAL-SEARCH-REPORT | WO2010131016 |
| OPPOSITION | JPH0881896 |
| OPPOSITION | US2004168783 |
| OPPOSITION | US2008265222 |
| OPPOSITION | WO2010131016 |
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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Description
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Refund of fees
Appeal
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(Electronic) Receipt
Appeal
Aug 3, 2020
Aug 3, 2020
Aug 3, 2020
Withdrawal of an appeal
Appeal
May 13, 2020
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(Electronic) Receipt
Appeal
May 8, 2020
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Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Jul 3, 2017
(Electronic) Receipt
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Jul 3, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2017
Jul 3, 2017
Jun 30, 2017
(Electronic) Receipt
Search/Exam
Jun 30, 2017
Filing of the translations of the claims
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Jun 30, 2017
French translation of claims
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Jun 30, 2017
German translation of the claims
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May 15, 2017
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Intention to grant (signatures)
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Mar 3, 2017
Text intended for grant (clean copy)
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Mar 3, 2017
Mar 2, 2017
(Electronic) Receipt
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Mar 2, 2017
Annexes in respect of a client data request
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Mar 2, 2017
Authorisation
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Mar 2, 2017
Letter accompanying subsequently filed items
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Mar 2, 2017
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Sep 21, 2016
(Electronic) Receipt
Search/Exam
Sep 21, 2016
Amended claims with annotations
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Sep 21, 2016
Amended description with annotations
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Sep 21, 2016
Claims
Search/Exam
Sep 21, 2016
Description
Search/Exam
Sep 21, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 21, 2016
Jul 28, 2016
Jul 25, 2016
Jul 20, 2016
May 30, 2016
Annex to the communication
Search/Exam
May 30, 2016
Communication from the Examining Division
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Apr 28, 2016
(Electronic) Receipt
Search/Exam
Apr 28, 2016
Amended claims with annotations
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Apr 28, 2016
Claims
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Apr 28, 2016
Letter accompanying subsequently filed items
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Apr 28, 2016
Jan 22, 2016
Annex to the communication
Search/Exam
Jan 22, 2016
Communication from the Examining Division
Search/Exam
Jan 18, 2016
Examination started
Search/Exam
Dec 23, 2013
(Electronic) Receipt
Search/Exam
Dec 23, 2013
Dec 23, 2013
Amended claims with annotations
Search/Exam
Dec 23, 2013
Amendments received before examination
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Dec 23, 2013
Letter accompanying subsequently filed items
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Aug 28, 2013
Jun 21, 2013
Jun 19, 2013
Communication to designated inventor
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Jun 19, 2013
Communication to designated inventor
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Jun 19, 2013
Communication to designated inventor
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Jun 7, 2013
May 24, 2013
(Electronic) Receipt
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May 24, 2013
Request for entry into the European phase
Search/Exam
Apr 2, 2013
Information on entry into European phase
Search/Exam
Nov 1, 2012
Copy of the international search report
Search/Exam
Nov 1, 2012
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May 24, 2012
Published international application - A2
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