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The patent EP3240620 was granted to Evonik Fibres on May 5, 2021. The application was filed on Dec 22, 2015 under application number EP15817339A. 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 |
|---|---|---|---|
| AIR PRODUCTS AND CHEMICALS | Feb 4, 2022 | BECK GREENER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0799634 |
| INTERNATIONAL-SEARCH-REPORT | EP2735355 |
| INTERNATIONAL-SEARCH-REPORT | JP2009242773 |
| INTERNATIONAL-SEARCH-REPORT | KR20140005846 |
| INTERNATIONAL-SEARCH-REPORT | US6565626 |
| INTERNATIONAL-SEARCH-REPORT | WO0033949 |
| INTERNATIONAL-SEARCH-REPORT | WO2012000727 |
| INTERNATIONAL-SEARCH-REPORT | WO2014075850 |
| INTERNATIONAL-SEARCH-REPORT | WO2014183977 |
| OPPOSITION | US2013098242 |
| OPPOSITION | US6565626 |
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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Nov 18, 2025
Nov 18, 2025
Nov 18, 2025
Nov 10, 2025
(Electronic) Receipt
Appeal
Nov 10, 2025
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Nov 6, 2025
Nov 5, 2025
(Electronic) Receipt
Appeal
Nov 5, 2025
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(Electronic) Receipt
Appeal
Oct 20, 2025
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Oct 10, 2025
(Electronic) Receipt
Appeal
Oct 10, 2025
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(Electronic) Receipt
Appeal
Oct 9, 2025
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Feb 26, 2025
(Electronic) Receipt
Appeal
Feb 26, 2025
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Oct 15, 2024
(Electronic) Receipt
Appeal
Oct 15, 2024
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Oct 7, 2024
(Electronic) Receipt
Appeal
Oct 7, 2024
Oct 7, 2024
Reply to appeal
Appeal
Oct 6, 2024
Oct 6, 2024
Oct 4, 2024
(Electronic) Receipt
Appeal
Oct 4, 2024
Oct 4, 2024
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Reply to appeal
Appeal
Jun 14, 2024
Jun 5, 2024
Jun 5, 2024
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May 21, 2024
(Electronic) Receipt
Appeal
May 21, 2024
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May 20, 2024
(Electronic) Receipt
Appeal
May 20, 2024
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Mar 15, 2024
(Electronic) Receipt
Appeal
Mar 15, 2024
Notice of appeal
Appeal
Mar 15, 2024
Notice of appeal
Appeal
Mar 1, 2024
Mar 1, 2024
Feb 27, 2024
(Electronic) Receipt
Appeal
Feb 27, 2024
Feb 27, 2024
Notice of appeal
Appeal
Jan 18, 2024
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Means of redress
OPPO
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OPPO
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May 19, 2021
Apr 9, 2021
Decision to grant a European patent
Search/Exam
Mar 24, 2021
(Electronic) Receipt
Search/Exam
Mar 24, 2021
Filing of the translations of the claims
Search/Exam
Mar 24, 2021
French translation of claims
Search/Exam
Mar 24, 2021
German translation of the claims
Search/Exam
Mar 24, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 30, 2020
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Nov 30, 2020
Intention to grant (signatures)
Search/Exam
Nov 30, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 30, 2020
Oct 12, 2020
(Electronic) Receipt
Search/Exam
Oct 12, 2020
Amended description with annotations
Search/Exam
Oct 12, 2020
Description
Search/Exam
Oct 12, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 12, 2020
Jun 18, 2020
Jun 18, 2020
Jun 18, 2020
Text intended for grant (clean copy)
Search/Exam
Jun 18, 2020
Mar 17, 2020
Examination started
Search/Exam
Mar 17, 2020
Intention to grant (signatures)
Search/Exam
Mar 11, 2019
Feb 25, 2019
(Electronic) Receipt
Search/Exam
Feb 25, 2019
Authorisation
Search/Exam
Feb 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2019
Jan 28, 2019
Submission concerning representation
Search/Exam
Jan 24, 2018
(Electronic) Receipt
Search/Exam
Jan 24, 2018
Jan 24, 2018
Amended claims with annotations
Search/Exam
Jan 24, 2018
Amendments received before examination
Search/Exam
Jan 24, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 11, 2017
Sep 27, 2017
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Communication to designated inventor
Search/Exam
Jul 29, 2017
Priority search results copy provided by EPO
Search/Exam
Jul 25, 2017
Jul 18, 2017
Jun 23, 2017
(Electronic) Receipt
Search/Exam
Jun 23, 2017
Request for entry into the European phase
Search/Exam
May 12, 2017
Information on entry into European phase
Search/Exam
Mar 8, 2017
Mar 8, 2017
Mar 8, 2017
Notification of the recording of a change
Search/Exam
Jul 26, 2016
Jul 7, 2016
Jul 7, 2016
Copy of the international search report
Search/Exam
Jul 7, 2016
Published international application - A1
Search/Exam
Apr 25, 2016
Apr 25, 2016
Apr 25, 2016
Jan 14, 2016
Dec 22, 2015
(Electronic) Receipt
PCTRO
Dec 22, 2015
Abstract
PCTRO
Dec 22, 2015
Claims
PCTRO
Dec 22, 2015
Description
PCTRO
Dec 22, 2015
Dec 22, 2015
Drawings
PCTRO
Dec 22, 2015
Dec 22, 2015
Dec 22, 2015
Dec 22, 2015