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The patent EP3211038 was granted to Idemitsu Kosan on Feb 12, 2025. The application was filed on Sep 14, 2015 under application number EP15852747A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| SABIC | May 14, 2020 | VON ROHR PATENTANWALTE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US6498228 |
| EXAMINATION | WO2007132738 |
| INTERNATIONAL-SEARCH-REPORT | JP2009096924 |
| INTERNATIONAL-SEARCH-REPORT | JP2012025819 |
| INTERNATIONAL-SEARCH-REPORT | JP2013155293 |
| INTERNATIONAL-SEARCH-REPORT | JP2013177481 |
| INTERNATIONAL-SEARCH-REPORT | JPH06279669 |
| OPPOSITION | JP2011131507 |
| OPPOSITION | JP2012025819 |
| OPPOSITION | JP2014105276 |
| OPPOSITION | US2013018115 |
| OPPOSITION | US2013317146 |
| OPPOSITION | US5187242 |
| OPPOSITION | US5322882 |
| OPPOSITION | US7812061 |
| OPPOSITION | WO0160889 |
| SEARCH | EP2517855 |
| SEARCH | JP2009096924 |
| SEARCH | JP2012025819 |
| SEARCH | WO2013162080 |
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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Refund of fees
Appeal
Mar 21, 2024
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(Electronic) Receipt
Appeal
Mar 13, 2024
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Withdrawal of an appeal
Appeal
Dec 21, 2023
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Claims
Appeal
Feb 15, 2023
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Reply to appeal
Appeal
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Sep 29, 2022
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
Aug 10, 2022
Authorisation
Appeal
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(Electronic) Receipt
Appeal
Aug 8, 2022
Authorisation
Appeal
Aug 8, 2022
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Notice of appeal
Appeal
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Aug 26, 2019
Jul 18, 2019
Decision to grant a European patent
Search/Exam
Jul 2, 2019
(Electronic) Receipt
Search/Exam
Jul 2, 2019
Filing of the translations of the claims
Search/Exam
Jul 2, 2019
French translation of claims
Search/Exam
Jul 2, 2019
German translation of the claims
Search/Exam
Jul 2, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 18, 2019
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Intention to grant (signatures)
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Mar 18, 2019
Text intended for grant (clean copy)
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Mar 18, 2019
Jan 30, 2019
Examination started
Search/Exam
Nov 5, 2018
(Electronic) Receipt
Search/Exam
Nov 5, 2018
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Amended claims with annotations
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Nov 5, 2018
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Nov 5, 2018
Letter accompanying subsequently filed items
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Apr 25, 2018
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European search opinion
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Apr 6, 2018
Information on Search Strategy
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Apr 6, 2018
Supplementary European search report
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Mar 16, 2018
Search started
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Dec 1, 2017
(Electronic) Receipt
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Dec 1, 2017
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Amendments received before examination
Search/Exam
Dec 1, 2017
Letter accompanying subsequently filed items
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Oct 23, 2017
(Electronic) Receipt
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Oct 23, 2017
Letter accompanying subsequently filed items
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Aug 18, 2017
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Letter which had not been notified
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Aug 2, 2017
Notification of forthcoming publication
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May 29, 2017
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Communication to designated inventor
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(Electronic) Receipt
Search/Exam
Apr 19, 2017
Abstract
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Apr 19, 2017
Claims
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Apr 19, 2017
Description
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Apr 19, 2017
Request for entry into the European phase
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Mar 3, 2017
Information on entry into European phase
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May 18, 2016
Apr 28, 2016
Copy of the international search report
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Apr 28, 2016
Apr 28, 2016
International publication pamphlet
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