The patent EP3325676 was granted to Stamicarbon on Dec 18, 2019. The application was originally filed on Jul 20, 2016 under application number EP16757366A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 | US7347903 |
| DESCRIPTION | WO9500674 |
| INTERNATIONAL-SEARCH-REPORT | EP1340829 |
| INTERNATIONAL-SEARCH-REPORT | EP1688511 |
| INTERNATIONAL-SEARCH-REPORT | EP2801396 |
| INTERNATIONAL-SEARCH-REPORT | WO2015097253 |
| INTERNATIONAL-SEARCH-REPORT | WO2015099530 |
| INTERNATIONAL-SEARCH-REPORT | WO9500674 |
| OPPOSITION | EP1340829 |
| OPPOSITION | EP2801396 |
| OPPOSITION | WO2006049572 |
| OPPOSITION | WO2015097253 |
| OPPOSITION | WO2015099530 |
| OPPOSITION | WO2017013180 |
| OPPOSITION | WO9500674 |
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Date
Description
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Nov 16, 2022
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Nov 21, 2019
Decision to grant a European patent
Search/Exam
Nov 4, 2019
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Intention to grant (signatures)
Search/Exam
Nov 4, 2019
Text intended for grant (clean copy)
Search/Exam
Nov 4, 2019
Oct 1, 2019
(Electronic) Receipt
Search/Exam
Oct 1, 2019
Amended claims with annotations
Search/Exam
Oct 1, 2019
Claims
Search/Exam
Oct 1, 2019
French translation of claims
Search/Exam
Oct 1, 2019
German translation of the claims
Search/Exam
Oct 1, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 1, 2019
May 28, 2019
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May 28, 2019
Intention to grant (signatures)
Search/Exam
May 28, 2019
Text intended for grant (clean copy)
Search/Exam
May 28, 2019
Mar 29, 2019
(Electronic) Receipt
Search/Exam
Mar 29, 2019
Amended description with annotations
Search/Exam
Mar 29, 2019
Description
Search/Exam
Mar 29, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 29, 2019
Mar 15, 2019
Annex to the communication
Search/Exam
Mar 15, 2019
Mar 15, 2019
Feb 26, 2019
(Electronic) Receipt
Search/Exam
Feb 26, 2019
Amended claims with annotations
Search/Exam
Feb 26, 2019
Claims
Search/Exam
Feb 26, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2019
Dec 14, 2018
Annex to the communication
Search/Exam
Dec 14, 2018
Communication from the Examining Division
Search/Exam
Dec 10, 2018
Examination started
Search/Exam
Jul 9, 2018
(Electronic) Receipt
Search/Exam
Jul 9, 2018
Letter accompanying subsequently filed items
Search/Exam
Jul 9, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
May 3, 2018
Apr 25, 2018
Apr 18, 2018
Letter which had not been notified
Search/Exam
Feb 28, 2018
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 23, 2018
Communication to designated inventor
Search/Exam
Feb 21, 2018
Priority search results copy provided by EPO
Search/Exam
Feb 13, 2018
(Electronic) Receipt
Search/Exam
Feb 13, 2018
Request for entry into the European phase
Search/Exam
Feb 5, 2018
Dec 4, 2017
Information on entry into European phase
Search/Exam
Feb 15, 2017
Jan 26, 2017
Copy of the international search report
Search/Exam
Jan 26, 2017
Published international application - A1
Search/Exam
Oct 17, 2016
Oct 10, 2016
ISR: cited documents
PCTISA
Oct 7, 2016
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Abstract
PCTISA
Jul 20, 2016
Claims
PCTISA
Jul 20, 2016
Description
PCTISA
Jul 20, 2016