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The patent EP3519459 was granted to Sabic on Oct 11, 2023. The application was filed on Sep 29, 2017 under application number EP17772446A. 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 11, 2024 | LYONDELLBASELL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0019330 |
| DESCRIPTION | EP0202716 |
| DESCRIPTION | EP1222214 |
| DESCRIPTION | EP1273595 |
| DESCRIPTION | EP1283222 |
| DESCRIPTION | EP1538167 |
| DESCRIPTION | EP1783145 |
| DESCRIPTION | US4414132 |
| DESCRIPTION | US4978648 |
| DESCRIPTION | US5077357 |
| DESCRIPTION | US5106806 |
| DESCRIPTION | US5556820 |
| DESCRIPTION | WO0123441 |
| DESCRIPTION | WO2014001257 |
| DESCRIPTION | WO2015091983 |
| DESCRIPTION | WO2015091984 |
| DESCRIPTION | WO2015185489 |
| DESCRIPTION | WO9632426 |
| DESCRIPTION | WO9632427 |
| EXAMINATION | WO2016184884 |
| INTERNATIONAL-SEARCH-REPORT | WO2011106494 |
| INTERNATIONAL-SEARCH-REPORT | WO2014001257 |
| INTERNATIONAL-SEARCH-REPORT | WO2015185490 |
| OPPOSITION | WO2014001257 |
| OPPOSITION | WO2015091984 |
| OPPOSITION | WO2015185489 |
| OPPOSITION | WO2016184884 |
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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OPPO
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Sep 14, 2023
Decision to grant a European patent
Search/Exam
Sep 6, 2023
(Electronic) Receipt
Search/Exam
Sep 6, 2023
French translation of claims
Search/Exam
Sep 6, 2023
German translation of the claims
Search/Exam
Sep 6, 2023
Letter accompanying subsequently filed items
Search/Exam
Aug 10, 2023
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Intention to grant (signatures)
Search/Exam
Aug 10, 2023
Text intended for grant (clean copy)
Search/Exam
Aug 10, 2023
Sep 23, 2020
(Electronic) Receipt
Search/Exam
Sep 23, 2020
Amended claims with annotations
Search/Exam
Sep 23, 2020
Claims
Search/Exam
Sep 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 23, 2020
May 28, 2020
Annex to the communication
Search/Exam
May 28, 2020
Communication from the Examining Division
Search/Exam
May 25, 2020
Examination started
Search/Exam
Nov 28, 2019
Nov 18, 2019
Oct 1, 2019
(Electronic) Receipt
Search/Exam
Oct 1, 2019
Oct 1, 2019
Amended claims with annotations
Search/Exam
Oct 1, 2019
Amendments received before examination
Search/Exam
Oct 1, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 10, 2019
May 8, 2019
May 6, 2019
Communication to designated inventor
Search/Exam
May 6, 2019
Communication to designated inventor
Search/Exam
Apr 30, 2019
Priority search results copy provided by EPO
Search/Exam
Apr 16, 2019
Mar 14, 2019
(Electronic) Receipt
Search/Exam
Mar 14, 2019
Request for entry into the European phase
Search/Exam
Feb 8, 2019
Information on entry into European phase
Search/Exam
Apr 23, 2018
Apr 5, 2018
Copy of the international search report
Search/Exam
Apr 5, 2018
Published international application - A1
Search/Exam
Dec 12, 2017
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Oct 9, 2017
Sep 29, 2017
(Electronic) Receipt
PCTRO
Sep 29, 2017
Abstract
PCTRO
Sep 29, 2017
Claims
PCTRO
Sep 29, 2017
Description
PCTRO
Sep 29, 2017
Sep 29, 2017
Sep 29, 2017