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The patent EP3302970 was granted to DOW on Nov 29, 2023. The application was filed on May 26, 2016 under application number EP16729424A. 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 |
|---|---|---|---|
| SABIC SABIC PETROCHEMICALS | Aug 29, 2024 | SABIC GROUP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US3645992 |
| DESCRIPTION | US3914342 |
| DESCRIPTION | US4076698 |
| DESCRIPTION | US4599392 |
| DESCRIPTION | US5272236 |
| DESCRIPTION | US5278272 |
| DESCRIPTION | US5582923 |
| DESCRIPTION | US5733155 |
| DESCRIPTION | US5854045 |
| EXAMINATION | JP2002052669 |
| EXAMINATION | US2013092590 |
| EXAMINATION | US2014127489 |
| INTERNATIONAL-SEARCH-REPORT | CA969820 |
| INTERNATIONAL-SEARCH-REPORT | JP2002178462 |
| INTERNATIONAL-SEARCH-REPORT | JP2005082671 |
| INTERNATIONAL-SEARCH-REPORT | US2004062919 |
| OPPOSITION | US2002156227 |
| OPPOSITION | US2004062919 |
| OPPOSITION | US2008154016 |
| OPPOSITION | US4567106 |
| OPPOSITION | US7798359 |
| OPPOSITION | WO2012003042 |
| OPPOSITION | WO2016196168 |
| OPPOSITION | WO9611803 |
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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Means of redress
OPPO
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Dec 12, 2023
Nov 3, 2023
Decision to grant a European patent
Search/Exam
Oct 19, 2023
(Electronic) Receipt
Search/Exam
Oct 19, 2023
Filing of the translations of the claims
Search/Exam
Oct 19, 2023
French translation of claims
Search/Exam
Oct 19, 2023
German translation of the claims
Search/Exam
Oct 19, 2023
Letter accompanying subsequently filed items
Search/Exam
Jun 12, 2023
Jun 12, 2023
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Jun 12, 2023
Intention to grant (signatures)
Search/Exam
Jun 12, 2023
Text intended for grant (clean copy)
Search/Exam
Jun 12, 2023
Jan 18, 2022
(Electronic) Receipt
Search/Exam
Jan 18, 2022
Amended claims with annotations
Search/Exam
Jan 18, 2022
Amended description with annotations
Search/Exam
Jan 18, 2022
Claims
Search/Exam
Jan 18, 2022
Description
Search/Exam
Jan 18, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 18, 2022
Nov 9, 2021
Annex to the communication
Search/Exam
Nov 9, 2021
Communication from the Examining Division
Search/Exam
Sep 1, 2020
(Electronic) Receipt
Search/Exam
Sep 1, 2020
Amended claims with annotations
Search/Exam
Sep 1, 2020
Amended claims with annotations
Search/Exam
Sep 1, 2020
Amended claims with annotations
Search/Exam
Sep 1, 2020
Claims
Search/Exam
Sep 1, 2020
Claims
Search/Exam
Sep 1, 2020
Claims
Search/Exam
Sep 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 1, 2020
Apr 28, 2020
Annex to the communication
Search/Exam
Apr 28, 2020
Communication from the Examining Division
Search/Exam
Apr 3, 2020
Examination started
Search/Exam
Oct 21, 2019
Submission concerning representation
Search/Exam
Mar 11, 2019
Submission concerning representation
Search/Exam
Jul 12, 2018
(Electronic) Receipt
Search/Exam
Jul 12, 2018
Jul 12, 2018
Amended claims with annotations
Search/Exam
Jul 12, 2018
Amendments received before examination
Search/Exam
Jul 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2018
Submission concerning representation
Search/Exam
Jun 12, 2018
(Electronic) Receipt
Search/Exam
Jun 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 12, 2018
Letter concerning the inventor
Search/Exam
Mar 19, 2018
Mar 14, 2018
Mar 12, 2018
Letter concerning the inventor
Search/Exam
Jan 12, 2018
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 5, 2018
Communication to designated inventor
Search/Exam
Jan 4, 2018
Jan 4, 2018
Jan 3, 2018
(Electronic) Receipt
Search/Exam
Jan 3, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 3, 2018
Dec 21, 2017
Dec 20, 2017
(Electronic) Receipt
Search/Exam
Dec 20, 2017
Dec 20, 2017
Request for entry into the European phase
Search/Exam
Oct 13, 2017
Information on entry into European phase
Search/Exam
Apr 13, 2017
Apr 13, 2017
Notification of the recording of a change
Search/Exam
Mar 13, 2017
Annex
PCTISA
Mar 13, 2017
Jan 3, 2017
Dec 8, 2016
Copy of the international search report
Search/Exam
Dec 8, 2016
Published international application - A1
Search/Exam
Aug 22, 2016
ISR: cited documents
PCTISA
Aug 18, 2016
Aug 18, 2016
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Aug 1, 2016
Annex
PCTISA
Aug 1, 2016
Aug 1, 2016
Jun 28, 2016
Jun 13, 2016
Abstract
PCTISA
Jun 13, 2016
Annex
PCTISA
Jun 13, 2016
Claims
PCTISA
Jun 13, 2016
Description
PCTISA
Jun 13, 2016
Drawings
PCTISA
Jun 13, 2016
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