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The patent EP3487895 was granted to Basf on Feb 1, 2023. The application was filed on Jul 6, 2017 under application number EP17737550A. 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 |
|---|---|---|---|
| ARKEMA FRANCE | Nov 1, 2023 | RENARD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE19621027 |
| DESCRIPTION | DE19624299 |
| DESCRIPTION | DE19741184 |
| DESCRIPTION | DE19741187 |
| DESCRIPTION | DE19805122 |
| DESCRIPTION | DE19828183 |
| DESCRIPTION | DE19839199 |
| DESCRIPTION | DE19840586 |
| DESCRIPTION | DE19847115 |
| DESCRIPTION | DE3225876 |
| DESCRIPTION | DE4003422 |
| DESCRIPTION | EP0386325 |
| DESCRIPTION | EP0574803 |
| DESCRIPTION | EP0771328 |
| DESCRIPTION | EP1333074 |
| DESCRIPTION | EP1732962 |
| DESCRIPTION | US2008075868 |
| DESCRIPTION | US4013607 |
| DESCRIPTION | US4269749 |
| DESCRIPTION | US4414770 |
| DESCRIPTION | US4529787 |
| DESCRIPTION | US4546160 |
| INTERNATIONAL-SEARCH-REPORT | EP1505127 |
| INTERNATIONAL-SEARCH-REPORT | EP2662393 |
| INTERNATIONAL-SEARCH-REPORT | WO2013174894 |
| OPPOSITION | EP0338486 |
| OPPOSITION | EP0688793 |
| OPPOSITION | EP0816402 |
| OPPOSITION | JP2012224747 |
| OPPOSITION | JP2015166428 |
| OPPOSITION | KR19990075204 |
| OPPOSITION | US2004122159 |
| OPPOSITION | US4529787 |
| OPPOSITION | WO0164764 |
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.
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Description
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(Electronic) Receipt
Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Decision to grant a European patent
Search/Exam
Dec 20, 2022
(Electronic) Receipt
Search/Exam
Dec 20, 2022
English translation of the claims
Search/Exam
Dec 20, 2022
Filing of the translations of the claims
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Dec 20, 2022
French translation of claims
Search/Exam
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Intention to grant (signatures)
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Sep 19, 2022
Text intended for grant (clean copy)
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Sep 19, 2022
Aug 5, 2022
Examination started
Search/Exam
Aug 28, 2019
(Electronic) Receipt
Search/Exam
Aug 28, 2019
Amendments received before examination
Search/Exam
Aug 28, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 28, 2019
Reply to Written Opinion prepared by the EPO
Search/Exam
May 2, 2019
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Mar 19, 2019
Letter which had not been notified
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Mar 1, 2019
Feb 27, 2019
Communication to designated inventor
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Feb 27, 2019
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Feb 5, 2019
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(Electronic) Receipt
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Request for entry into the European phase
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Nov 30, 2018
Information on entry into European phase
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Copy of the international search report
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Copy of the international search report
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Jan 25, 2018
Published international application - A1
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(Electronic) Receipt
PCTRO
Jul 6, 2017
Abstract
PCTRO
Jul 6, 2017
Claims
PCTRO
Jul 6, 2017
Description
PCTRO
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