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The patent EP3022244 was granted to Basf on Feb 5, 2020. The application was filed on Jul 15, 2014 under application number EP14744488A. 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 |
|---|---|---|---|
| HUNTSMAN | Jan 26, 2018 | VAN DEN BROECK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN101205289 |
| DESCRIPTION | DE4115508 |
| DESCRIPTION | DE4412329 |
| DESCRIPTION | EP0922719 |
| DESCRIPTION | EP1078944 |
| DESCRIPTION | EP1158011 |
| DESCRIPTION | EP1692203 |
| DESCRIPTION | GB2347933 |
| DESCRIPTION | US4261946 |
| DESCRIPTION | US4347338 |
| DESCRIPTION | US6142189 |
| DESCRIPTION | WO2005053938 |
| DESCRIPTION | WO2005054322 |
| DESCRIPTION | WO2008116801 |
| DESCRIPTION | WO2010125009 |
| INTERNATIONAL-SEARCH-REPORT | CN100390216C |
| INTERNATIONAL-SEARCH-REPORT | EP2424912 |
| INTERNATIONAL-SEARCH-REPORT | US2010105842 |
| OPPOSITION | EP0022617 |
| OPPOSITION | EP0712876 |
| OPPOSITION | GB1403247 |
| OPPOSITION | US2002153507 |
| OPPOSITION | US2010152381 |
| OPPOSITION | US2013090428 |
| OPPOSITION | US5418259 |
| OPPOSITION | US5494941 |
| OPPOSITION | US5585409 |
| OPPOSITION | US6258310 |
| OPPOSITION | US7790778 |
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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OPPO
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OPPO
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OPPO
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OPPO
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Mar 30, 2017
Decision to grant a European patent
Search/Exam
Mar 16, 2017
(Electronic) Receipt
Search/Exam
Mar 16, 2017
Filing of the translations of the claims
Search/Exam
Mar 16, 2017
French translation of claims
Search/Exam
Mar 16, 2017
German translation of the claims
Search/Exam
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Submission concerning representation
Search/Exam
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Intention to grant (signatures)
Search/Exam
Dec 7, 2016
Text intended for grant (clean copy)
Search/Exam
Dec 7, 2016
Nov 10, 2016
Examination started
Search/Exam
Aug 29, 2016
(Electronic) Receipt
Search/Exam
Aug 29, 2016
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Amended claims with annotations
Search/Exam
Aug 29, 2016
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Amended description with annotations
Search/Exam
Aug 29, 2016
Amendments received before examination
Search/Exam
Aug 29, 2016
Letter accompanying subsequently filed items
Search/Exam
Jun 27, 2016
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Letter which had not been notified
Search/Exam
Apr 28, 2016
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Patent document filed by a Third party
Search/Exam
Mar 30, 2016
Patent document filed by a Third party
Search/Exam
Mar 30, 2016
Patent document filed by a Third party
Search/Exam
Mar 22, 2016
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Observations by third parties
Search/Exam
Mar 16, 2016
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Letter which had not been notified
Search/Exam
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Letter which had not been notified
Search/Exam
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Communication to designated inventor
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Jan 26, 2016
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(Electronic) Receipt
Search/Exam
Jan 12, 2016
Request for entry into the European phase
Search/Exam
Nov 27, 2015
Information on entry into European phase
Search/Exam
Aug 11, 2015
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Notification of election of EPO
Search/Exam
May 27, 2015
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Notification of the recording of a change
Search/Exam
May 22, 2015
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PCT demand form
PCT2
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Feb 10, 2015
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Copy of the international search report
Search/Exam
Jan 22, 2015
Published international application - A1
Search/Exam
Oct 30, 2014
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Jul 15, 2014
(Electronic) Receipt
PCTRO
Jul 15, 2014
Abstract
PCTRO
Jul 15, 2014
Claims
PCTRO
Jul 15, 2014
Description
PCTRO