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The patent EP2838979 was granted to UPM Kymmene on Mar 13, 2019. The application was filed on Apr 17, 2013 under application number EP13721789A. 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 |
|---|---|---|---|
| NESTE OYJ | Dec 12, 2019 | ZACCO DENMARK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO2010097519 |
| INTERNATIONAL-SEARCH-REPORT | WO2010128208 |
| INTERNATIONAL-SEARCH-REPORT | WO2012069705 |
| OPPOSITION | EP2576731 |
| OPPOSITION | US2012004479 |
| OPPOSITION | US4076700 |
| OPPOSITION | WO2009151690 |
| OPPOSITION | WO2011148045 |
| OPPOSITION | WO2012069704 |
| OPPOSITION | WO2012069705 |
| OPPOSITION | WO2012069706 |
| OPPOSITION | WO2012143613 |
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 6, 2024
Refund of fees
Appeal
Dec 4, 2024
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Dec 4, 2024
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Nov 6, 2024
Nov 1, 2024
(Electronic) Receipt
Appeal
Nov 1, 2024
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Oct 25, 2024
(Electronic) Receipt
Appeal
Oct 25, 2024
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(Electronic) Receipt
Appeal
Aug 11, 2023
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(Electronic) Receipt
Appeal
Jul 31, 2023
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Nov 16, 2022
Nov 10, 2022
(Electronic) Receipt
Appeal
Nov 10, 2022
Nov 10, 2022
Nov 10, 2022
Reply to appeal
Appeal
Jul 1, 2022
Jun 28, 2022
(Electronic) Receipt
Appeal
Jun 28, 2022
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(Electronic) Receipt
Appeal
May 10, 2022
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Notice of appeal
Appeal
Mar 31, 2022
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Means of redress
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Mar 25, 2019
Feb 14, 2019
Decision to grant a European patent
Search/Exam
Feb 6, 2019
Jan 28, 2019
(Electronic) Receipt
Search/Exam
Jan 28, 2019
Filing of the translations of the claims
Search/Exam
Jan 28, 2019
French translation of claims
Search/Exam
Jan 28, 2019
German translation of the claims
Search/Exam
Jan 28, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 16, 2018
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Oct 16, 2018
Intention to grant (signatures)
Search/Exam
Oct 16, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 16, 2018
Sep 6, 2018
(Electronic) Receipt
Search/Exam
Sep 6, 2018
Amended claims with annotations
Search/Exam
Sep 6, 2018
Amended description with annotations
Search/Exam
Sep 6, 2018
Claims
Search/Exam
Sep 6, 2018
Description
Search/Exam
Sep 6, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 6, 2018
Jul 10, 2018
Annex to the communication
Search/Exam
Jul 10, 2018
Communication from the Examining Division
Search/Exam
Jan 24, 2018
(Electronic) Receipt
Search/Exam
Jan 24, 2018
Amended claims with annotations
Search/Exam
Jan 24, 2018
Claims
Search/Exam
Jan 24, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 24, 2018
Nov 27, 2017
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(Electronic) Receipt
Search/Exam
Nov 20, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 20, 2017
Oct 17, 2017
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(Electronic) Receipt
Search/Exam
Oct 10, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 10, 2017
Jul 18, 2017
Annex to the communication
Search/Exam
Jul 18, 2017
Communication from the Examining Division
Search/Exam
Jul 12, 2017
Examination started
Search/Exam
Apr 26, 2017
Oct 15, 2015
Oct 7, 2015
(Electronic) Receipt
Search/Exam
Oct 7, 2015
Letter accompanying subsequently filed items
Search/Exam
Oct 7, 2015
Priority search results
Search/Exam
Oct 7, 2015
Sep 1, 2015
Jul 3, 2015
(Electronic) Receipt
Search/Exam
Jul 3, 2015
Jul 3, 2015
Amended claims with annotations
Search/Exam
Jul 3, 2015
Amendments received before examination
Search/Exam
Jul 3, 2015
Letter accompanying subsequently filed items
Search/Exam
Jan 28, 2015
Jan 14, 2015
Refund order of filing/examination fee
Search/Exam
Jan 7, 2015
Dec 23, 2014
Communication to designated inventor
Search/Exam
Dec 23, 2014
Communication to designated inventor
Search/Exam
Dec 23, 2014
Communication to designated inventor
Search/Exam
Dec 23, 2014
Communication to designated inventor
Search/Exam
Dec 23, 2014
Communication to designated inventor
Search/Exam
Nov 17, 2014
(Electronic) Receipt
Search/Exam
Nov 17, 2014
Priority search results
Search/Exam
Nov 17, 2014
Request for entry into the European phase
Search/Exam
Oct 29, 2014
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Oct 13, 2014
Aug 29, 2014
Information on entry into European phase
Search/Exam
Jul 18, 2014
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May 30, 2014
May 30, 2014
Notification of the recording of a change
Search/Exam
Apr 2, 2014
Written opinion
PCT2
Apr 2, 2014
Apr 2, 2014
Mar 18, 2014
Notification of election of EPO
Search/Exam
Mar 4, 2014
Feb 28, 2014
Notification of the recording of a change
Search/Exam
Feb 21, 2014
Feb 17, 2014
Annex
PCT2
Feb 17, 2014
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PCT demand form
PCT2
Feb 17, 2014
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Oct 24, 2013
Copy of the international search report
Search/Exam
Oct 24, 2013
Published international application - A1
Search/Exam
Jul 17, 2013
Jul 17, 2013
Jul 17, 2013
Apr 17, 2013
Abstract
PCTISA
Apr 17, 2013
Annex
PCTISA
Apr 17, 2013
Claims
PCTISA
Apr 17, 2013
Description
PCTISA
Apr 17, 2013
Drawings
PCTISA