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The patent EP1893558 was granted to Evonik Degussa on Jun 6, 2018. The application was filed on Apr 27, 2006 under application number EP06754898A. The patent is currently recorded with a legal status of "Revoked".

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 | Mar 1, 2019 | BASF ASSOCIATION | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO03029180 |
| INTERNATIONAL-SEARCH-REPORT | DE10321100 |
| INTERNATIONAL-SEARCH-REPORT | EP1314772 |
| INTERNATIONAL-SEARCH-REPORT | EP1475071 |
| INTERNATIONAL-SEARCH-REPORT | US2003069135 |
| INTERNATIONAL-SEARCH-REPORT | WO2004009526 |
| INTERNATIONAL-SEARCH-REPORT | WO2004081127 |
| OPPOSITION | EP1186593 |
| OPPOSITION | US2003069135 |
| OPPOSITION | WO03029180 |
| OPPOSITION | WO2005123821 |
| OPPOSITION | WO9932427 |
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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Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Aug 16, 2024
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Jul 11, 2024
Jul 9, 2024
(Electronic) Receipt
Appeal
Jul 9, 2024
Jul 9, 2024
Jul 1, 2024
Jun 27, 2024
Jun 26, 2024
(Electronic) Receipt
Appeal
Jun 26, 2024
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Description
Appeal
Jun 26, 2024
Description
Appeal
Jun 26, 2024
Description
Appeal
Jun 26, 2024
Description
Appeal
Jun 26, 2024
Description
Appeal
Jun 26, 2024
Description
Appeal
Jun 26, 2024
Jun 26, 2024
Jun 24, 2024
(Electronic) Receipt
Appeal
Jun 24, 2024
Jun 24, 2024
Jun 12, 2024
Jun 12, 2024
Jan 30, 2024
Advice of delivery
Appeal
Jan 22, 2024
Advice of delivery
Appeal
Jan 15, 2024
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Jan 10, 2024
Oct 25, 2023
Oct 25, 2023
Oct 12, 2023
Annexes in respect of a client data request
Search/Exam
Oct 12, 2023
Annexes in respect of a client data request
Search/Exam
Oct 12, 2023
Letter accompanying subsequently filed items
Search/Exam
Oct 12, 2023
Oct 12, 2023
Jul 24, 2023
Jul 12, 2022
Jul 7, 2022
(Electronic) Receipt
Appeal
Jul 7, 2022
Jul 7, 2022
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Reply to appeal
Appeal
Mar 17, 2022
Mar 10, 2022
(Electronic) Receipt
Appeal
Mar 10, 2022
Mar 10, 2022
Jan 19, 2022
Jan 19, 2022
Jan 10, 2022
(Electronic) Receipt
Appeal
Jan 10, 2022
Jan 10, 2022
Notice of appeal
Appeal
Nov 16, 2021
Nov 10, 2021
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Means of redress
OPPO
Nov 10, 2021
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Jun 18, 2018
May 11, 2018
Decision to grant a European patent
Search/Exam
Apr 24, 2018
(Electronic) Receipt
Search/Exam
Apr 24, 2018
English translation of the claims
Search/Exam
Apr 24, 2018
Filing of the translations of the claims
Search/Exam
Apr 24, 2018
French translation of claims
Search/Exam
Apr 24, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 18, 2018
Jan 18, 2018
Jan 18, 2018
Intention to grant (signatures)
Search/Exam
Jan 18, 2018
Text intended for grant (clean copy)
Search/Exam
Jan 18, 2018
Dec 20, 2017
Nov 8, 2017
(Electronic) Receipt
Search/Exam
Nov 8, 2017
Amended description with annotations
Search/Exam
Nov 8, 2017
Description
Search/Exam
Nov 8, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 8, 2017
Nov 2, 2017
Nov 2, 2017
Nov 2, 2017
Nov 2, 2017
Intention to grant (signatures)
Search/Exam
Nov 2, 2017
Text intended for grant (clean copy)
Search/Exam
Nov 2, 2017
Sep 11, 2017
(Electronic) Receipt
Search/Exam
Sep 11, 2017
Amended claims with annotations
Search/Exam
Sep 11, 2017
Amended description with annotations
Search/Exam
Sep 11, 2017
Claims
Search/Exam
Sep 11, 2017
Description
Search/Exam
Sep 11, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 11, 2017
Jun 7, 2017
Annex to the communication
Search/Exam
Jun 7, 2017
Communication from the Examining Division
Search/Exam
Jun 2, 2017
Sep 15, 2016
(Electronic) Receipt
Search/Exam
Sep 15, 2016
Amended claims with annotations
Search/Exam
Sep 15, 2016
Claims
Search/Exam
Sep 15, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2016
Jul 8, 2016
Jul 5, 2016
(Electronic) Receipt
Search/Exam
Jul 5, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 5, 2016
Mar 18, 2016
Annex to the communication
Search/Exam
Mar 18, 2016
Communication from the Examining Division
Search/Exam
Sep 9, 2013
Sep 3, 2013
Letter concerning fees and payments
Search/Exam
Aug 28, 2013
May 2, 2013
(Electronic) Receipt
Search/Exam
May 2, 2013
Claims
Search/Exam
May 2, 2013
Letter accompanying subsequently filed items
Search/Exam
May 2, 2013
Apr 15, 2013
Annex to the communication
Search/Exam
Apr 15, 2013
Communication from the Examining Division
Search/Exam
Jun 25, 2008
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Aug 28, 2007
Aug 28, 2007
Request for entry into the European phase
Search/Exam
Jun 5, 2007
Written opinion
PCT2
Jun 5, 2007
Jun 5, 2007
Jan 15, 2007
Jan 13, 2007
Request for change of representative
Search/Exam
Dec 28, 2006
Copy of the international search report
Search/Exam
Dec 28, 2006
Published international application - A1
Search/Exam
Oct 4, 2006
Sep 20, 2006
Sep 20, 2006
Sep 1, 2006
PCT demand form
PCT2
Apr 27, 2006
Abstract
PCTRO
Apr 27, 2006
Claims
PCTRO
Apr 27, 2006
Description
PCTRO