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The patent EP2331603 was granted to Basf on Sep 19, 2018. The application was filed on Sep 22, 2009 under application number EP09783282A. 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 |
|---|---|---|---|
| NOVAMONT | Jun 19, 2019 | HOFFMANN EITLE | WITHDRAWN |
| HUANG | Jun 18, 2019 | BROCHER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2006074815 |
| INTERNATIONAL-SEARCH-REPORT | DE102005053068 |
| INTERNATIONAL-SEARCH-REPORT | JP2004300284 |
| INTERNATIONAL-SEARCH-REPORT | WO2006097353 |
| OPPOSITION | WO2006074815 |
| OPPOSITION | WO2006097353 |
| OPPOSITION | WO2006097354 |
| OPPOSITION | WO2006097355 |
| OPPOSITION | WO2006097356 |
| OPPOSITION | WO2008098888 |
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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Feb 28, 2024
Refund of fees
Appeal
Feb 22, 2024
Feb 22, 2024
Feb 21, 2024
Feb 21, 2024
Feb 21, 2024
Feb 20, 2024
(Electronic) Receipt
Appeal
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Withdrawal of an appeal
Appeal
Dec 13, 2023
Dec 13, 2023
Sep 5, 2023
Sep 5, 2023
Aug 23, 2023
Aug 18, 2023
(Electronic) Receipt
Appeal
Aug 18, 2023
Aug 18, 2023
Aug 17, 2023
Aug 15, 2023
(Electronic) Receipt
Appeal
Aug 15, 2023
Aug 15, 2023
Jun 19, 2023
Jun 19, 2023
Jun 7, 2023
Advice of delivery
Appeal
Jun 2, 2023
Advice of delivery
Appeal
Jun 1, 2023
Jun 1, 2023
May 26, 2023
May 26, 2023
Jul 8, 2022
Jul 5, 2022
(Electronic) Receipt
Appeal
Jul 5, 2022
Jul 5, 2022
Mar 4, 2022
Mar 1, 2022
(Electronic) Receipt
Appeal
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
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Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Reply to appeal
Appeal
Nov 26, 2021
Oct 22, 2021
Oct 22, 2021
Oct 18, 2021
(Electronic) Receipt
Appeal
Oct 18, 2021
Authorisation
Appeal
Oct 18, 2021
Oct 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 13, 2021
(Electronic) Receipt
Appeal
Aug 13, 2021
Aug 13, 2021
Notice of appeal
Appeal
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Jun 9, 2021
Jun 8, 2021
Jun 8, 2021
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Jun 8, 2021
Jun 8, 2021
Means of redress
OPPO
Jun 8, 2021
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Apr 16, 2021
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Feb 23, 2021
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Oct 1, 2018
Aug 23, 2018
Decision to grant a European patent
Search/Exam
Aug 2, 2018
(Electronic) Receipt
Search/Exam
Aug 2, 2018
English translation of the claims
Search/Exam
Aug 2, 2018
Filing of the translations of the claims
Search/Exam
Aug 2, 2018
French translation of claims
Search/Exam
Apr 30, 2018
Apr 30, 2018
Apr 30, 2018
Intention to grant (signatures)
Search/Exam
Apr 30, 2018
Text intended for grant (clean copy)
Search/Exam
Apr 30, 2018
Dec 7, 2017
(Electronic) Receipt
Search/Exam
Dec 7, 2017
Amended description with annotations
Search/Exam
Dec 7, 2017
Description
Search/Exam
Dec 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 7, 2017
Oct 18, 2017
Annex to the communication
Search/Exam
Oct 18, 2017
Communication from the Examining Division
Search/Exam
Jun 7, 2017
(Electronic) Receipt
Search/Exam
Jun 7, 2017
Annex
Search/Exam
Jun 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 7, 2017
Apr 12, 2017
Apr 6, 2017
(Electronic) Receipt
Search/Exam
Apr 6, 2017
Letter accompanying subsequently filed items
Search/Exam
Apr 6, 2017
Feb 15, 2017
Feb 15, 2017
Submission concerning representation
Search/Exam
Dec 14, 2016
Annex to the communication
Search/Exam
Dec 14, 2016
Communication from the Examining Division
Search/Exam
Sep 19, 2016
(Electronic) Receipt
Search/Exam
Sep 19, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 19, 2016
May 31, 2016
Annex to the communication
Search/Exam
May 31, 2016
Communication from the Examining Division
Search/Exam
Mar 16, 2016
Mar 10, 2016
Mar 3, 2016
CDS Clean up - amended applicant details
Search/Exam
Mar 3, 2016
Feb 12, 2016
(Electronic) Receipt
Search/Exam
Feb 12, 2016
Amended claims with annotations
Search/Exam
Feb 12, 2016
Claims
Search/Exam
Feb 12, 2016
Letter accompanying subsequently filed items
Search/Exam
Feb 12, 2016
Nov 4, 2015
Annex to the communication
Search/Exam
Nov 4, 2015
Communication from the Examining Division
Search/Exam
Mar 12, 2015
Amended claims with annotations
Search/Exam
Mar 12, 2015
Annex
Search/Exam
Mar 12, 2015
Claims
Search/Exam
Mar 12, 2015
Mar 10, 2015
Amended claims with annotations
Search/Exam
Mar 10, 2015
Annex
Search/Exam
Mar 10, 2015
Claims
Search/Exam
Mar 10, 2015
Oct 31, 2014
Annex to the communication
Search/Exam
Oct 31, 2014
Communication from the Examining Division
Search/Exam
Oct 27, 2014
Examination started
Search/Exam
Nov 9, 2011
Amendments received before examination
Search/Exam
Jun 10, 2011
Jun 3, 2011
Letter which had not been notified
Search/Exam
May 18, 2011
May 13, 2011
Apr 7, 2011
(Electronic) Receipt
Search/Exam
Apr 7, 2011
Apr 7, 2011
Amended claims with annotations
Search/Exam
Apr 7, 2011
Apr 7, 2011
Apr 7, 2011
Request for entry into the European phase
Search/Exam
Feb 4, 2011
Information on entry into European phase
Search/Exam
Sep 1, 2010
Sep 1, 2010
Sep 1, 2010
Sep 1, 2010
Sep 1, 2010
Sep 1, 2010
Sep 1, 2010
Sep 1, 2010
Sep 1, 2010
Aug 11, 2010
Notification of election of EPO
Search/Exam
Aug 9, 2010
Aug 9, 2010
Aug 9, 2010
Notification of the recording of a change
Search/Exam
Jul 20, 2010
Jul 20, 2010
Jun 29, 2010
Jun 29, 2010
PCT demand form
PCT2
Jun 29, 2010
Jun 29, 2010
May 27, 2010
CDS Clean up - amended applicant details
Search/Exam
Apr 22, 2010
Apr 1, 2010
Copy of the international search report
Search/Exam
Apr 1, 2010
Published international application - A1
Search/Exam
Dec 22, 2009
Dec 22, 2009
Dec 22, 2009
Sep 22, 2009
(Electronic) Receipt
PCTRO
Sep 22, 2009
Abstract
PCTRO
Sep 22, 2009
Claims
PCTRO
Sep 22, 2009
Description
PCTRO
Sep 22, 2009