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The patent EP2606181 was granted to UPM Kymmene on Oct 7, 2020. The application was filed on Aug 16, 2011 under application number EP11817817A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| AECHTER | Jul 7, 2021 | TER MEER STEINMEISTER & PARTNER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1297220 |
| DESCRIPTION | US5679220 |
| DESCRIPTION | US5731080 |
| INTERNATIONAL-SEARCH-REPORT | US2004154771 |
| INTERNATIONAL-SEARCH-REPORT | US2008210391 |
| INTERNATIONAL-SEARCH-REPORT | US2009229772 |
| INTERNATIONAL-SEARCH-REPORT | WO2005005725 |
| OPPOSITION | CN101492893 |
| OPPOSITION | EP2486188 |
| OPPOSITION | EP2580161 |
| OPPOSITION | US2003147799 |
| OPPOSITION | US2004154771 |
| OPPOSITION | US2005089466 |
| OPPOSITION | US5223090 |
| OPPOSITION | WO2005005725 |
| OPPOSITION | WO2009103854 |
| SEARCH | DE102006003721 |
| SEARCH | US2004154771 |
| SEARCH | US2008210391 |
| SEARCH | US2009229772 |
| SEARCH | WO2005005725 |
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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Feb 23, 2021
Document concerning representation
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Oct 19, 2020
Sep 10, 2020
Decision to grant a European patent
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Aug 4, 2020
Jul 9, 2020
(Electronic) Receipt
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Jul 9, 2020
Annexes in respect of a client data request
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Jul 9, 2020
Letter accompanying subsequently filed items
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Jul 9, 2020
Apr 30, 2020
Decision to allow further processing
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Apr 20, 2020
(Electronic) Receipt
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Apr 20, 2020
French translation of claims
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Apr 20, 2020
German translation of the claims
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Apr 20, 2020
Letter accompanying subsequently filed items
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Apr 20, 2020
Request for further processing
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Feb 11, 2020
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Intention to grant (signatures)
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Aug 21, 2019
Text intended for grant (clean copy)
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Aug 21, 2019
Jul 10, 2019
(Electronic) Receipt
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Jul 10, 2019
Amended claims with annotations
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Jul 10, 2019
Amended description with annotations
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Jul 10, 2019
Claims
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Jul 10, 2019
Description
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Jul 10, 2019
Letter accompanying subsequently filed items
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Jul 10, 2019
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Intention to grant (signatures)
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Apr 4, 2019
Text intended for grant (clean copy)
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Apr 4, 2019
May 7, 2018
(Electronic) Receipt
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May 7, 2018
Amended claims with annotations
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May 7, 2018
Claims
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May 7, 2018
Letter accompanying subsequently filed items
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May 7, 2018
Jan 18, 2018
Annex to the communication
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Jan 18, 2018
Communication from the Examining Division
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Jan 12, 2018
Examination started
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Dec 21, 2016
Submission concerning representation
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Sep 9, 2015
Submission concerning representation
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Aug 25, 2015
(Electronic) Receipt
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Aug 25, 2015
Aug 25, 2015
Letter accompanying subsequently filed items
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Aug 25, 2015
Priority search results
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Aug 25, 2015
Aug 10, 2015
(Electronic) Receipt
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Aug 10, 2015
Aug 10, 2015
Amended claims with annotations
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Aug 10, 2015
Amendments received before examination
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Aug 10, 2015
Letter accompanying subsequently filed items
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Mar 17, 2015
Feb 26, 2015
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European search opinion
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Feb 26, 2015
Supplementary European search report
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Feb 16, 2015
Search started
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May 29, 2013
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Mar 25, 2013
Communication to designated inventor
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Mar 12, 2013
Feb 14, 2013
(Electronic) Receipt
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Feb 14, 2013
Priority search results
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Feb 14, 2013
Request for entry into the European phase
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Jan 4, 2013
Information on entry into European phase
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Mar 13, 2012
Feb 23, 2012
Copy of the international search report
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Feb 23, 2012
Published international application - A1
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