The patent EP2930231 was granted to UPM Kymmene on Sep 3, 2025. The application was originally filed on Nov 25, 2011 under application number EP15168211A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US5705722 |
| EXAMINATION | US3644179 |
| EXAMINATION | US4981555 |
| EXAMINATION | WO03052034 |
| EXAMINATION | WO2009106696 |
| OPPOSITION | DE2736357 |
| OPPOSITION | EP1291355 |
| OPPOSITION | EP1637582 |
| OPPOSITION | EP1741768 |
| OPPOSITION | EP2643431 |
| OPPOSITION | NL7711298 |
| OPPOSITION | US2004230085 |
| OPPOSITION | US2005051419 |
| OPPOSITION | US2009163744 |
| OPPOSITION | US2009283442 |
| OPPOSITION | US2010038284 |
| OPPOSITION | US2012069706 |
| OPPOSITION | US2894880 |
| OPPOSITION | US3644179 |
| OPPOSITION | US4076700 |
| OPPOSITION | US4431524 |
| OPPOSITION | US4512878 |
| OPPOSITION | US4941967 |
| OPPOSITION | US5705722 |
| OPPOSITION | WO03038020 |
| OPPOSITION | WO2007050030 |
| OPPOSITION | WO2008017730 |
| OPPOSITION | WO2009011639 |
| OPPOSITION | WO2009125072 |
| OPPOSITION | WO2009131510 |
| OPPOSITION | WO2010097519 |
| SEARCH | EP1586624 |
| SEARCH | US2716630 |
| SEARCH | US2886492 |
| SEARCH | WO2009131510 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text |
|---|---|
| OPPOSITION | - "History", ZINKEL D. F. et al., Naval Stores, Pulp Chemicals Association, (19890000), pages 28-37, 176-183, 225-235, 354 - 363, XP055789005 |
| OPPOSITION | - Nadkarni, R. A. Kishore, "Guide to ASTM Test Methods for the Analysis of Petroleum Products and Lubricants" ASTM International, 01.01.2007 ISBN: 978-0-8031-4274-9 |
| OPPOSITION | - Organikum, (19990000), ISBN 3-527-29719-7 |
| OPPOSITION | - "Tall Oil", Derk T. A. Huibers et al, Kirk-Othmer Encyclopedia of Chemical Technology, John Wiley & Sons Inc, (20001204), pages 1 - 7, XP055302512 |
| OPPOSITION | - "Tall Oil", Lars Hugo Norlin et al, Ullmann's Encyclopedia of industrial chemistry, Wiley-VCH, (20050000), pages 1 - 14, XP002519551 |
| OPPOSITION | - HARVEY et al., "High-Density Renewable Fuels Based on the Selective Dimerization of Pinenes", Energy Fuels, (20100101), vol. 24, no. 1, pages 267 - 273, XP055302519 |
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Decision to grant a European patent
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Text intended for grant (clean copy)
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(Electronic) Receipt
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Amended claims with annotations
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Claims
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French translation of claims
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Apr 23, 2020
German translation of the claims
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Apr 23, 2020
Letter accompanying subsequently filed items
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Mar 25, 2020
Communication to designated inventor
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Change to the inventor details
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Intention to grant (signatures)
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Jan 3, 2020
Text intended for grant (clean copy)
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Jan 3, 2020
Nov 26, 2018
(Electronic) Receipt
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Nov 26, 2018
Amended claims with annotations
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Nov 26, 2018
Claims
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Nov 26, 2018
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Sep 25, 2018
Request for extension of time limit
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May 15, 2018
Annex to the communication
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May 15, 2018
Communication from the Examining Division
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May 7, 2018
Examination started
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Priority search results
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Refund order of filing/examination fee
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Amended claims with annotations
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Amendments received before examination
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Letter accompanying subsequently filed items
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Oct 19, 2015
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Notification of forthcoming publication
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Jul 29, 2015
Refund of fees
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Jul 7, 2015
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European search opinion
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Jul 7, 2015
European search report
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Jun 19, 2015
Search started
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May 19, 2015
Abstract
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Claims
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May 19, 2015
Description
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Designation of inventor
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Drawings
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Request for grant of a European patent
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Jun 18, 2012
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