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The patent EP1951777 was granted to DOW on May 17, 2017. The application was filed on Nov 3, 2006 under application number EP06827462A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| BASF | Feb 16, 2018 | ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB | ADMISSIBLE |
| COVESTRO DEUTSCHLAND AGCOVESTRO | Feb 7, 2018 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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Apr 27, 2023
Apr 26, 2023
(Electronic) Receipt
Appeal
Apr 26, 2023
Advice of delivery
Appeal
Apr 18, 2023
Advice of delivery
Appeal
Apr 18, 2023
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(Electronic) Receipt
Appeal
Jan 23, 2023
Advice of delivery
Appeal
Jan 17, 2023
Jan 17, 2023
Jan 16, 2023
(Electronic) Receipt
Appeal
Jan 16, 2023
Jan 16, 2023
Jan 3, 2023
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Dec 27, 2022
(Electronic) Receipt
Appeal
Dec 27, 2022
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Dec 23, 2022
Advice of delivery
Appeal
Dec 23, 2022
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Dec 22, 2022
(Electronic) Receipt
Appeal
Dec 22, 2022
Advice of delivery
Appeal
Dec 22, 2022
Advice of delivery
Appeal
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Dec 19, 2022
Advice of delivery
Appeal
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Nov 18, 2022
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Appeal
Nov 18, 2022
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Nov 17, 2022
(Electronic) Receipt
Appeal
Nov 17, 2022
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Nov 3, 2022
(Electronic) Receipt
Appeal
Nov 3, 2022
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Nov 2, 2022
(Electronic) Receipt
Appeal
Nov 2, 2022
General enquiry
Appeal
Nov 2, 2022
Mar 28, 2022
(Electronic) Receipt
Appeal
Mar 28, 2022
Advice of delivery
Appeal
Mar 21, 2022
(Electronic) Receipt
Appeal
Mar 21, 2022
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Mar 21, 2022
Mar 17, 2022
Advice of delivery
Appeal
Mar 17, 2022
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Apr 7, 2020
Apr 1, 2020
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Apr 1, 2020
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Claims
Appeal
Apr 1, 2020
Claims
Appeal
Apr 1, 2020
Claims
Appeal
Apr 1, 2020
Claims
Appeal
Apr 1, 2020
Claims
Appeal
Apr 1, 2020
Apr 1, 2020
Reply to appeal
Appeal
Dec 6, 2019
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Nov 29, 2019
(Electronic) Receipt
Appeal
Nov 29, 2019
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Oct 11, 2019
Sep 27, 2019
(Electronic) Receipt
Appeal
Sep 27, 2019
Sep 27, 2019
Notice of appeal
Appeal
Jul 29, 2019
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Claims
OPPO
Jun 27, 2019
Claims
OPPO
Jun 27, 2019
Claims
OPPO
Jun 27, 2019
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OPPO
Jun 27, 2019
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OPPO
Jun 27, 2019
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Dec 13, 2017
May 17, 2017
Apr 21, 2017
Decision to grant a European patent
Search/Exam
Apr 6, 2017
Apr 6, 2017
Apr 6, 2017
Intention to grant (signatures)
Search/Exam
Apr 6, 2017
Text intended for grant (clean copy)
Search/Exam
Apr 6, 2017
Apr 5, 2017
Mar 1, 2017
(Electronic) Receipt
Search/Exam
Mar 1, 2017
Amended claims with annotations
Search/Exam
Mar 1, 2017
Claims
Search/Exam
Mar 1, 2017
French translation of claims
Search/Exam
Mar 1, 2017
German translation of the claims
Search/Exam
Mar 1, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 1, 2017
Oct 26, 2016
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Oct 26, 2016
Intention to grant (signatures)
Search/Exam
Oct 26, 2016
Text intended for grant (clean copy)
Search/Exam
Oct 26, 2016
Aug 18, 2016
(Electronic) Receipt
Search/Exam
Aug 18, 2016
Amended claims with annotations
Search/Exam
Aug 18, 2016
Amended description with annotations
Search/Exam
Aug 18, 2016
Claims
Search/Exam
Aug 18, 2016
Description
Search/Exam
Aug 18, 2016
Letter accompanying subsequently filed items
Search/Exam
Aug 18, 2016
May 9, 2016
Annex to the communication
Search/Exam
May 9, 2016
Communication from the Examining Division
Search/Exam
Mar 17, 2014
Mar 7, 2014
Dec 16, 2011
(Electronic) Receipt
Search/Exam
Dec 16, 2011
Amended claims with annotations
Search/Exam
Dec 16, 2011
Claims
Search/Exam
Dec 16, 2011
Letter accompanying subsequently filed items
Search/Exam
Dec 16, 2011
Dec 16, 2011
Aug 29, 2011
Annex to the communication
Search/Exam
Aug 29, 2011
Communication from the Examining Division
Search/Exam
Mar 16, 2011
Mar 7, 2011
Apr 3, 2009
Claims
Search/Exam
Apr 3, 2009
Feb 7, 2009
Feb 5, 2009
Jan 30, 2009
Oct 20, 2008
Letter concerning the inventor
Search/Exam
Sep 29, 2008
Annex to the communication
Search/Exam
Sep 29, 2008
Communication from the Examining Division
Search/Exam
Aug 8, 2008
CDS Clean up - amended applicant details
Search/Exam
Jul 14, 2008
Jul 10, 2008
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Jul 7, 2008
Letter which had not been notified
Search/Exam
Jun 4, 2008
May 19, 2008
May 13, 2008
Matter concerning the application
Search/Exam
May 13, 2008
Request for entry into the European phase
Search/Exam
May 8, 2008
Fax request to enter the European phase
Search/Exam
May 8, 2008
Letter accompanying subsequently filed items
Search/Exam
May 8, 2008
Matter concerning the application
Search/Exam
Mar 28, 2008
Information on entry into European phase
Search/Exam
Jun 13, 2007
May 24, 2007
Copy of the international search report
Search/Exam
May 24, 2007
Published international application - A1
Search/Exam
Dec 29, 2006
Abstract
PCTISA
Dec 29, 2006
Claims
PCTISA
Dec 29, 2006
Description
PCTISA
Dec 29, 2006