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The patent EP3409345 was granted to Basf on Sep 30, 2020. The application was filed on Dec 12, 2008 under application number EP18174727A. 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 |
|---|---|---|---|
| JOHNSON MATTHEY PUBLIC | Jun 30, 2021 | BOWN | ADMISSIBLE |
| UMICORE | Jun 25, 2021 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US19470610129 |
| DESCRIPTION | US2005069476 |
| DESCRIPTION | US4329162 |
| DESCRIPTION | US4961917 |
| DESCRIPTION | US4963332 |
| DESCRIPTION | US5100632 |
| DESCRIPTION | US5491120 |
| DESCRIPTION | US5516497 |
| DESCRIPTION | US5522218 |
| DESCRIPTION | US6415602 |
| OPPOSITION | EP1736232 |
| OPPOSITION | EP1938893 |
| OPPOSITION | JP2005002968 |
| OPPOSITION | JP2005009407 |
| OPPOSITION | US2002039550 |
| OPPOSITION | US2006153761 |
| OPPOSITION | US2008045405 |
| OPPOSITION | US4931419 |
| OPPOSITION | US4961917 |
| OPPOSITION | US6696031 |
| OPPOSITION | US6877313 |
| OPPOSITION | WO2004025093 |
| OPPOSITION | WO2004061278 |
| OPPOSITION | WO2005016497 |
| OPPOSITION | WO2006056811 |
| OPPOSITION | WO2007014637 |
| OPPOSITION | WO2007077462 |
| OPPOSITION | WO2009076574 |
| OPPOSITION | WO9939809 |
| SEARCH | US2006153761 |
| SEARCH | US6877313 |
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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Mar 19, 2025
Refund of fees
Search/Exam
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Appeal
Mar 7, 2025
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Withdrawal of an appeal
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Appeal
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Appeal
Feb 28, 2023
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Appeal
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Information concerning oral proceedings
Search/Exam
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Sep 14, 2020
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Search/Exam
Sep 14, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2020
Sep 3, 2020
Decision to grant a European patent
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Aug 20, 2020
Aug 12, 2020
(Electronic) Receipt
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Aug 12, 2020
Annexes in respect of a client data request
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Aug 12, 2020
Annexes in respect of a client data request
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Aug 12, 2020
Filing of the translations of the claims
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Aug 12, 2020
French translation of claims
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Aug 12, 2020
German translation of the claims
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Aug 12, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 6, 2020
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Intention to grant (signatures)
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Apr 6, 2020
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Intention to grant (signatures)
Search/Exam
Mar 26, 2020
Mar 5, 2020
(Electronic) Receipt
Search/Exam
Mar 5, 2020
Description
Search/Exam
Mar 5, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 5, 2020
Jan 2, 2020
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Jan 2, 2020
Intention to grant (signatures)
Search/Exam
Jan 2, 2020
Nov 4, 2019
Examination started
Search/Exam
Jun 14, 2019
Submission concerning representation
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Jun 5, 2019
(Electronic) Receipt
Search/Exam
Jun 5, 2019
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Amended claims with annotations
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Jun 5, 2019
Amendments received before examination
Search/Exam
Jun 5, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 10, 2018
Nov 21, 2018
Refund of fees
Search/Exam
Nov 7, 2018
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European search opinion
Search/Exam
Nov 7, 2018
European search report
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Nov 7, 2018
Information on Search Strategy
Search/Exam
Nov 7, 2018
Notification of forthcoming publication
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Oct 31, 2018
Communication to designated inventor
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Oct 31, 2018
Communication to designated inventor
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Oct 31, 2018
Communication to designated inventor
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Oct 31, 2018
Communication to designated inventor
Search/Exam
Oct 31, 2018
Modified abstract
Search/Exam
Oct 17, 2018
Search started
Search/Exam
Oct 11, 2018
(Electronic) Receipt
Search/Exam
Oct 11, 2018
Designation of inventor
Search/Exam
Oct 11, 2018
Designation of inventor
Search/Exam
Oct 11, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 11, 2018
Letter concerning the inventor
Search/Exam
Aug 3, 2018
Deficiency in designation of inventor
Search/Exam
May 29, 2018
Abstract
Search/Exam
May 29, 2018
May 29, 2018
Claims
Search/Exam
May 29, 2018
Description
Search/Exam
May 29, 2018
Drawings
Search/Exam
May 29, 2018
Request for grant of a European patent
Search/Exam
Jul 8, 2009
Jul 8, 2009