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The patent EP3022253 was granted to Basf on Aug 14, 2024. The application was filed on Jul 16, 2014 under application number EP14739187A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| SOLVAY SPECIALTY POLYMERS USA | Feb 18, 2022 | FERRI | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE3644464 |
| INTERNATIONAL-SEARCH-REPORT | EP2189487 |
| INTERNATIONAL-SEARCH-REPORT | EP2287236 |
| INTERNATIONAL-SEARCH-REPORT | EP2305740 |
| INTERNATIONAL-SEARCH-REPORT | US3923738 |
| INTERNATIONAL-SEARCH-REPORT | WO9415999 |
| OPPOSITION | CH447603 |
| OPPOSITION | DE19816955 |
| OPPOSITION | EP2305740 |
| OPPOSITION | EP3013889 |
| OPPOSITION | GB1153035 |
| OPPOSITION | GB1394983 |
| OPPOSITION | US2011224386 |
| OPPOSITION | US4108837 |
| OPPOSITION | US5013816 |
| OPPOSITION | US5015423 |
| OPPOSITION | WO2014207106 |
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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Refund of fees
OPPO
Feb 24, 2022
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Jun 1, 2021
Apr 22, 2021
Decision to grant a European patent
Search/Exam
Apr 8, 2021
(Electronic) Receipt
Search/Exam
Apr 8, 2021
English translation of the claims
Search/Exam
Apr 8, 2021
Filing of the translations of the claims
Search/Exam
Apr 8, 2021
French translation of claims
Search/Exam
Dec 15, 2020
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Dec 15, 2020
Intention to grant (signatures)
Search/Exam
Dec 15, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 15, 2020
Aug 26, 2020
(Electronic) Receipt
Search/Exam
Aug 26, 2020
Amended description with annotations
Search/Exam
Aug 26, 2020
Claims
Search/Exam
Aug 26, 2020
Description
Search/Exam
Aug 26, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 26, 2020
Jul 21, 2020
Annex to the communication
Search/Exam
Jul 21, 2020
Communication from the Examining Division
Search/Exam
Mar 17, 2020
(Electronic) Receipt
Search/Exam
Mar 17, 2020
Amended description with annotations
Search/Exam
Mar 17, 2020
Description
Search/Exam
Mar 17, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 17, 2020
Dec 18, 2019
Annex to the communication
Search/Exam
Dec 18, 2019
Communication from the Examining Division
Search/Exam
Aug 23, 2019
(Electronic) Receipt
Search/Exam
Aug 23, 2019
Amended claims with annotations
Search/Exam
Aug 23, 2019
Amended claims with annotations
Search/Exam
Aug 23, 2019
Amended claims with annotations
Search/Exam
Aug 23, 2019
Claims
Search/Exam
Aug 23, 2019
Claims
Search/Exam
Aug 23, 2019
Claims
Search/Exam
Aug 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2019
Apr 25, 2019
Annex to the communication
Search/Exam
Apr 25, 2019
Communication from the Examining Division
Search/Exam
Apr 11, 2019
Examination started
Search/Exam
Feb 21, 2017
Feb 15, 2017
Oct 6, 2016
Oct 6, 2016
Sep 2, 2016
Jul 6, 2016
Reply to Written Opinion prepared by the EPO
Search/Exam
Jul 5, 2016
Reply to Written Opinion prepared by the EPO
Search/Exam
Apr 28, 2016
Mar 4, 2016
Mar 3, 2016
CDS Clean up - amended applicant details
Search/Exam
Mar 3, 2016
Feb 27, 2016
Priority search results copy provided by EPO
Search/Exam
Feb 26, 2016
Communication to designated inventor
Search/Exam
Feb 26, 2016
Communication to designated inventor
Search/Exam
Feb 26, 2016
Communication to designated inventor
Search/Exam
Feb 26, 2016
Communication to designated inventor
Search/Exam
Feb 9, 2016
(Electronic) Receipt
Search/Exam
Feb 9, 2016
Request for entry into the European phase
Search/Exam
Jan 26, 2016
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Nov 27, 2015
Information on entry into European phase
Search/Exam
Sep 8, 2015
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Aug 19, 2015
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Aug 17, 2015
Jul 1, 2015
Written opinion
PCT2
Jul 1, 2015
Jul 1, 2015
Jun 8, 2015
Notification of election of EPO
Search/Exam
May 15, 2015
May 8, 2015
PCT demand form
PCT2
May 8, 2015
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PCT demand form
PCT2
May 6, 2015
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Jan 22, 2015
Copy of the international search report
Search/Exam
Jan 22, 2015
Copy of the international search report
Search/Exam
Jan 22, 2015
Published international application - A1
Search/Exam
Oct 13, 2014
Oct 13, 2014
Oct 13, 2014
Jul 16, 2014
(Electronic) Receipt
PCTRO
Jul 16, 2014
Abstract
PCTRO
Jul 16, 2014
Claims
PCTRO
Jul 16, 2014
Description
PCTRO
Jul 16, 2014