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The patent EP4021975 was granted to Sabic on Apr 10, 2024. The application was originally filed on Aug 14, 2020 under application number EP20754766A. 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.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0019330 |
| DESCRIPTION | EP1273595 |
| DESCRIPTION | US4399054 |
| DESCRIPTION | US4472524 |
| DESCRIPTION | US4771024 |
| DESCRIPTION | US4866022 |
| DESCRIPTION | US5017714 |
| DESCRIPTION | US5093415 |
| DESCRIPTION | US5324820 |
| DESCRIPTION | US6825146 |
| DESCRIPTION | WO03068828 |
| DESCRIPTION | WO2006010414 |
| DESCRIPTION | WO2007134851 |
| DESCRIPTION | WO2014044682 |
| DESCRIPTION | WO2014161621 |
| DESCRIPTION | WO2015091983 |
| DESCRIPTION | WO9632426 |
| INTERNATIONAL-SEARCH-REPORT | EP1344793 |
| INTERNATIONAL-SEARCH-REPORT | EP2145923 |
| INTERNATIONAL-SEARCH-REPORT | EP2787034 |
| OPPOSITION | EP2141193 |
| OPPOSITION | WO2007009534 |
| OPPOSITION | WO2007071447 |
| OPPOSITION | WO2014161621 |
| OPPOSITION | WO2016066446 |
| OPPOSITION | WO2016095225 |
| OPPOSITION | WO2017060139 |
| OPPOSITION | WO2018114979 |
| OPPOSITION | WO2018138235 |
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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Annex
OPPO
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Apr 23, 2024
Mar 14, 2024
Decision to grant a European patent
Search/Exam
Feb 29, 2024
(Electronic) Receipt
Search/Exam
Feb 29, 2024
Filing of the translations of the claims
Search/Exam
Feb 29, 2024
French translation of claims
Search/Exam
Feb 29, 2024
German translation of the claims
Search/Exam
Nov 22, 2023
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Intention to grant (signatures)
Search/Exam
Nov 22, 2023
Text intended for grant (clean copy)
Search/Exam
Nov 22, 2023
Oct 5, 2023
Examination started
Search/Exam
Sep 27, 2022
(Electronic) Receipt
Search/Exam
Sep 27, 2022
Abstract
Search/Exam
Sep 27, 2022
Abstract
Search/Exam
Sep 27, 2022
Sep 27, 2022
Amended claims with annotations
Search/Exam
Sep 27, 2022
Sep 27, 2022
Amended description with annotations
Search/Exam
Sep 27, 2022
Amendments received before examination
Search/Exam
Sep 27, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 9, 2022
Apr 5, 2022
Mar 29, 2022
Priority search results copy provided by EPO
Search/Exam
Mar 21, 2022
(Electronic) Receipt
Search/Exam
Mar 21, 2022
Annex
Search/Exam
Mar 21, 2022
Request for entry into the European phase
Search/Exam
Mar 14, 2022
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Information on entry into European phase
Search/Exam
Mar 22, 2021
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Copy of the international search report
Search/Exam
Mar 4, 2021
Published international application - A1
Search/Exam
Oct 15, 2020
ISR: cited documents
PCTISA
Oct 15, 2020
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Aug 14, 2020
(Electronic) Receipt
PCTRO
Aug 14, 2020
Abstract
PCTRO
Aug 14, 2020
Claims
PCTRO
Aug 14, 2020
Description
PCTRO
Aug 14, 2020
Aug 14, 2020
Aug 14, 2020