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The patent EP3307820 was granted to Sabic on Oct 2, 2019. The application was filed on Jun 6, 2016 under application number EP16727194A. 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 |
|---|---|---|---|
| BASELL POLIOLEFINE ITALIA | Jul 2, 2020 | LYONDELLBASELL | ADMISSIBLE |
| BOREALIS | Jul 2, 2020 | MAIWALD | ADMISSIBLE |
| WR GRACE & CONN | Jul 1, 2020 | KUTZENBERGER WOLFF & PARTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2014EP78795 |
| DESCRIPTION | WO2014EP78796 |
| DESCRIPTION | WO2015EP55167 |
| DESCRIPTION | EP0019330 |
| DESCRIPTION | EP0063654 |
| DESCRIPTION | EP0398698 |
| DESCRIPTION | EP1222214 |
| DESCRIPTION | EP1273595 |
| DESCRIPTION | EP1275595 |
| DESCRIPTION | EP1283222 |
| DESCRIPTION | EP1838741 |
| DESCRIPTION | EP2108679 |
| DESCRIPTION | GB1272778 |
| DESCRIPTION | US2010130709 |
| DESCRIPTION | US4282076 |
| DESCRIPTION | US4414132 |
| DESCRIPTION | US4771024 |
| DESCRIPTION | US4866022 |
| DESCRIPTION | US4978648 |
| DESCRIPTION | US5077357 |
| DESCRIPTION | US5093415 |
| DESCRIPTION | US5106806 |
| DESCRIPTION | US5556820 |
| DESCRIPTION | US6218504 |
| DESCRIPTION | US6395670 |
| DESCRIPTION | US6825146 |
| DESCRIPTION | WO0123441 |
| DESCRIPTION | WO02088194 |
| DESCRIPTION | WO03068828 |
| DESCRIPTION | WO2004039848 |
| DESCRIPTION | WO2006056338 |
| DESCRIPTION | WO2007134851 |
| DESCRIPTION | WO2009080821 |
| DESCRIPTION | WO2009129873 |
| DESCRIPTION | WO2013124063 |
| DESCRIPTION | WO2014044680 |
| DESCRIPTION | WO2014044682 |
| DESCRIPTION | WO9632426 |
| DESCRIPTION | WO9632427 |
| INTERNATIONAL-SEARCH-REPORT | WO2014044680 |
| OPPOSITION | DE1795396 |
| OPPOSITION | EP0735053 |
| OPPOSITION | EP1535718 |
| OPPOSITION | EP2075284 |
| OPPOSITION | EP2144962 |
| OPPOSITION | EP2154190 |
| OPPOSITION | EP2373732 |
| OPPOSITION | EP2492310 |
| OPPOSITION | GB1272778 |
| OPPOSITION | US2005032991 |
| OPPOSITION | US2010168342 |
| OPPOSITION | US2011054110 |
| OPPOSITION | US2011136998 |
| OPPOSITION | US5703203 |
| OPPOSITION | US6218504 |
| OPPOSITION | US7935766 |
| OPPOSITION | US8067510 |
| OPPOSITION | US8344069 |
| OPPOSITION | WO0136502 |
| OPPOSITION | WO02088194 |
| OPPOSITION | WO2004039848 |
| OPPOSITION | WO2008074423 |
| OPPOSITION | WO2009124753 |
| OPPOSITION | WO2009129873 |
| OPPOSITION | WO2010078480 |
| OPPOSITION | WO2010082943 |
| OPPOSITION | WO2010151508 |
| OPPOSITION | WO2011008589 |
| OPPOSITION | WO2012049204 |
| OPPOSITION | WO2012116719 |
| OPPOSITION | WO2013074087 |
| OPPOSITION | WO2014044680 |
| OPPOSITION | WO2014044682 |
| OPPOSITION | WO2014161621 |
| OPPOSITION | WO2015082379 |
| OPPOSITION | WO2015091810 |
| OPPOSITION | WO2015150042 |
| OPPOSITION | WO2016038211 |
| OTHER | EP2373732 |
| OTHER | GB1272778 |
| OTHER | US6218504 |
| OTHER | WO0136502 |
| OTHER | WO02088194 |
| OTHER | WO2004039848 |
| OTHER | WO2008074423 |
| OTHER | WO2010078480 |
| OTHER | WO2011008589 |
| OTHER | WO2012116719 |
| OTHER | WO2013074087 |
| OTHER | WO2015091810 |
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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Reply to appeal
Appeal
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Appeal
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Appeal
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Refund of fees
Appeal
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Appeal
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Withdrawal of an appeal
Appeal
Apr 4, 2023
(Electronic) Receipt
Appeal
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Feb 7, 2023
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Notice of appeal
Appeal
Feb 3, 2023
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Appeal
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Oct 14, 2019
Sep 5, 2019
Decision to grant a European patent
Search/Exam
Aug 21, 2019
(Electronic) Receipt
Search/Exam
Aug 21, 2019
Filing of the translations of the claims
Search/Exam
Aug 21, 2019
French translation of claims
Search/Exam
Aug 21, 2019
German translation of the claims
Search/Exam
Aug 21, 2019
Letter accompanying subsequently filed items
Search/Exam
May 22, 2019
May 22, 2019
May 22, 2019
Intention to grant (signatures)
Search/Exam
May 22, 2019
Text intended for grant (clean copy)
Search/Exam
May 22, 2019
Jan 11, 2019
(Electronic) Receipt
Search/Exam
Jan 11, 2019
Amended description with annotations
Search/Exam
Jan 11, 2019
Description
Search/Exam
Jan 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 11, 2019
Sep 18, 2018
Annex to the communication
Search/Exam
Sep 18, 2018
Communication from the Examining Division
Search/Exam
Sep 12, 2018
Examination started
Search/Exam
Jun 29, 2018
(Electronic) Receipt
Search/Exam
Jun 29, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 29, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Mar 21, 2018
Feb 21, 2018
Jan 19, 2018
Jan 17, 2018
Communication to designated inventor
Search/Exam
Jan 17, 2018
Communication to designated inventor
Search/Exam
Jan 17, 2018
Communication to designated inventor
Search/Exam
Jan 12, 2018
Priority search results copy provided by EPO
Search/Exam
Jan 11, 2018
Dec 28, 2017
Observations by third parties
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 28, 2017
Patent document filed by a Third party
Search/Exam
Dec 7, 2017
(Electronic) Receipt
Search/Exam
Dec 7, 2017
Request for entry into the European phase
Search/Exam
Oct 20, 2017
Information on entry into European phase
Search/Exam
Feb 22, 2017
Feb 22, 2017
Notification of the recording of a change
Search/Exam
Jan 3, 2017
Jan 3, 2017
Dec 15, 2016
Copy of the international search report
Search/Exam
Dec 15, 2016
Published international application - A1
Search/Exam
Jul 8, 2016
Jul 8, 2016
Jul 8, 2016
Jun 17, 2016
Jun 6, 2016
(Electronic) Receipt
PCTRO
Jun 6, 2016
Abstract
PCTRO
Jun 6, 2016
Claims
PCTRO
Jun 6, 2016
Description
PCTRO
Jun 6, 2016
Jun 6, 2016
Jun 6, 2016
Jun 6, 2016