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The patent EP3497152 was granted to Sabic on Jun 7, 2023. The application was originally filed on Jul 13, 2017 under application number EP17736972A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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 8, 2025
Dec 8, 2025
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Means of redress
Search/Exam
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Authorisation
OPPO
Aug 28, 2025
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Annex
OPPO
Jun 25, 2025
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Jun 20, 2023
May 11, 2023
Decision to grant a European patent
Search/Exam
Jan 16, 2023
(Electronic) Receipt
Search/Exam
Jan 16, 2023
Filing of the translations of the claims
Search/Exam
Jan 16, 2023
French translation of claims
Search/Exam
Jan 16, 2023
German translation of the claims
Search/Exam
Jan 16, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 16, 2023
Sep 6, 2022
Sep 6, 2022
Sep 6, 2022
Intention to grant (signatures)
Search/Exam
Sep 6, 2022
Text intended for grant (clean copy)
Search/Exam
Sep 6, 2022
Jul 22, 2022
(Electronic) Receipt
Search/Exam
Jul 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2022
Jul 21, 2022
Annex to the communication
Search/Exam
Jul 21, 2022
Consultation by telephone/in person
Search/Exam
Jul 21, 2022
Jun 15, 2022
Jun 9, 2022
(Electronic) Receipt
Search/Exam
Jun 9, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 9, 2022
Request for extension of time limit
Search/Exam
Mar 11, 2022
Annex to the communication
Search/Exam
Mar 11, 2022
Communication from the Examining Division
Search/Exam
Jul 8, 2021
(Electronic) Receipt
Search/Exam
Jul 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 8, 2021
Jun 7, 2021
Jun 1, 2021
(Electronic) Receipt
Search/Exam
Jun 1, 2021
(Electronic) Receipt
Search/Exam
Jun 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 1, 2021
Feb 15, 2021
Annex to the communication
Search/Exam
Feb 15, 2021
Communication from the Examining Division
Search/Exam
Nov 9, 2020
(Electronic) Receipt
Search/Exam
Nov 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 9, 2020
Oct 15, 2020
Oct 9, 2020
(Electronic) Receipt
Search/Exam
Oct 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2020
Jun 2, 2020
Annex to the communication
Search/Exam
Jun 2, 2020
Communication from the Examining Division
Search/Exam
May 26, 2020
Examination started
Search/Exam
Aug 15, 2019
(Electronic) Receipt
Search/Exam
Aug 15, 2019
Aug 15, 2019
Amended claims with annotations
Search/Exam
Aug 15, 2019
Amendments received before examination
Search/Exam
Aug 15, 2019
Letter accompanying subsequently filed items
Search/Exam
May 22, 2019
Mar 22, 2019
Mar 20, 2019
Communication to designated inventor
Search/Exam
Mar 20, 2019
Communication to designated inventor
Search/Exam
Mar 20, 2019
Communication to designated inventor
Search/Exam
Mar 20, 2019
Communication to designated inventor
Search/Exam
Mar 16, 2019
Priority search results copy provided by EPO
Search/Exam
Mar 8, 2019
(Electronic) Receipt
Search/Exam
Mar 8, 2019
Annex
Search/Exam
Mar 8, 2019
Request for entry into the European phase
Search/Exam
Feb 27, 2019
Dec 19, 2018
Information on entry into European phase
Search/Exam
Mar 5, 2018
Feb 15, 2018
Copy of the international search report
Search/Exam
Feb 15, 2018
Published international application - A1
Search/Exam
Jul 31, 2017
Jul 31, 2017
Jul 31, 2017
Jul 20, 2017
Jul 13, 2017
(Electronic) Receipt
PCTRO
Jul 13, 2017
Abstract
PCTRO
Jul 13, 2017
Claims
PCTRO
Jul 13, 2017
Description
PCTRO
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017