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The patent EP3464449 was granted to Sabic on Aug 21, 2019. The application was filed on May 25, 2017 under application number EP17732223A. 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 |
|---|---|---|---|
| BASF | May 25, 2020 | BASF ASSOCIATION | ADMISSIBLE |
| PFRANG | May 22, 2020 | MEISSNER BOLTE PARTNERSCHAFT MBB | ADMISSIBLE |
| EMS CHEMIE | May 20, 2020 | PFENNING | ADMISSIBLE |
| SOLVAY SPECIALTY POLYMERS USA | May 19, 2020 | VIOLA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0633295 |
| INTERNATIONAL-SEARCH-REPORT | JP2015040296 |
| INTERNATIONAL-SEARCH-REPORT | US2009255714 |
| INTERNATIONAL-SEARCH-REPORT | US2015368458 |
| INTERNATIONAL-SEARCH-REPORT | WO2015200272 |
| OPPOSITION | CN102634124 |
| OPPOSITION | CN104650573 |
| OPPOSITION | CN105566909 |
| OPPOSITION | CN105694423 |
| OPPOSITION | EP0831072 |
| OPPOSITION | EP1086930 |
| OPPOSITION | EP1982814 |
| OPPOSITION | EP3239241 |
| OPPOSITION | JP2003137590 |
| OPPOSITION | JP2004099376 |
| OPPOSITION | JP2010215827 |
| OPPOSITION | JP2012136385 |
| OPPOSITION | JP2013131576 |
| OPPOSITION | JP2014058603 |
| OPPOSITION | JP2016033209 |
| OPPOSITION | JPH01130943 |
| OPPOSITION | JPH0741659 |
| OPPOSITION | JPH08333137 |
| OPPOSITION | JPH09221338 |
| OPPOSITION | JPH11209590 |
| OPPOSITION | US2004146692 |
| OPPOSITION | US2004175557 |
| OPPOSITION | US2009247699 |
| OPPOSITION | US2012058878 |
| OPPOSITION | US2012060678 |
| OPPOSITION | US2013106659 |
| OPPOSITION | US2013108875 |
| OPPOSITION | US2013273280 |
| OPPOSITION | US2013345347 |
| OPPOSITION | US2015189746 |
| OPPOSITION | US2015344352 |
| OPPOSITION | US2016341847 |
| OPPOSITION | US2017029615 |
| OPPOSITION | US5958808 |
| OPPOSITION | WO2010011701 |
| OPPOSITION | WO2011030778 |
| OPPOSITION | WO2015195143 |
| OPPOSITION | WO2015200272 |
| OPPOSITION | WO2016101692 |
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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Decision to grant a European patent
Search/Exam
Jul 16, 2019
(Electronic) Receipt
Search/Exam
Jul 16, 2019
Filing of the translations of the claims
Search/Exam
Jul 16, 2019
Letter accompanying subsequently filed items
Search/Exam
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Search/Exam
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(Electronic) Receipt
Search/Exam
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Amended claims with annotations
Search/Exam
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Claims
Search/Exam
Jun 10, 2019
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Search/Exam
Jun 10, 2019
German translation of the claims
Search/Exam
Jun 10, 2019
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
May 13, 2019
Text intended for grant (clean copy)
Search/Exam
May 13, 2019
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Examination started
Search/Exam
Mar 13, 2019
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
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Matter concerning the application
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Nov 15, 2018
(Electronic) Receipt
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Request for entry into the European phase
Search/Exam
Nov 13, 2018
Free text
PCT2
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Information on entry into European phase
Search/Exam
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Notification of election of EPO
Search/Exam
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PCT demand form
PCT2
Mar 26, 2018
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Copy of the international search report
Search/Exam
Nov 30, 2017
Published international application - A1
Search/Exam
Aug 17, 2017
ISR: cited documents
PCTISA
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Abstract
PCTISA
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Annex
PCTISA
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Annex
PCTISA
Jun 6, 2017
Claims
PCTISA
Jun 6, 2017
Description
PCTISA
Jun 6, 2017