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The patent EP3967661 was granted to Metal Trade Overseas on Jul 26, 2023. The application was filed on Sep 9, 2020 under application number EP20195318A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| GLENCORE NIKKELVERK | Apr 26, 2024 | ACAPO ONSAGERS | ADMISSIBLE |
| GLENCORE NIKKELVERK | Apr 26, 2024 | ONSAGERS | ADMISSIBLE |
| UMICORE | Apr 25, 2024 | UMICORE RDI PATENT DEPARTMENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US7364717 |
| DESCRIPTION | US9416023 |
| EXAMINATION | CN104532295B |
| EXAMINATION | CN107739059 |
| OPPOSITION | CA1210592 |
| OPPOSITION | CA2008063 |
| OPPOSITION | CN107739059 |
| OPPOSITION | DE102018005586 |
| OPPOSITION | GB2104053 |
| OPPOSITION | JP2011126757 |
| OPPOSITION | SU385927 |
| OPPOSITION | US2015175438 |
| OPPOSITION | US2533245 |
| OPPOSITION | US3777003 |
| OPPOSITION | US3902896 |
| OPPOSITION | US3958947 |
| OPPOSITION | US5250273 |
| OPPOSITION | US6554915 |
| OPPOSITION | US7364717 |
| OPPOSITION | US7799296 |
| OPPOSITION | US9321656 |
| OPPOSITION | WO2009146485 |
| OTHER | JP2011126757 |
| OTHER | US9321656 |
| OTHER | WO2022053448 |
| SEARCH | GB2104053 |
| SEARCH | JPS6345131 |
| SEARCH | US7364717 |
| SEARCH | US7799296 |
| SEARCH | WO2014009208 |
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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Jun 12, 2025
Brief communication
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Jun 12, 2025
Brief communication
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Jun 12, 2025
Brief communication
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Jun 12, 2025
May 23, 2025
Annex
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May 23, 2025
Letter to the Legal Division
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Apr 3, 2025
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Authorisation
OPPO
Sep 16, 2024
Authorisation
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Aug 8, 2023
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Jun 29, 2023
Decision to grant a European patent
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Jun 28, 2023
(Electronic) Receipt
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Jun 28, 2023
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Jun 21, 2023
Jun 15, 2023
(Electronic) Receipt
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Jun 15, 2023
Annexes in respect of a client data request
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Jun 15, 2023
Filing of the translations of the claims
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Jun 15, 2023
French translation of claims
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Jun 15, 2023
German translation of the claims
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Jun 15, 2023
Letter concerning the inventor
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Jun 15, 2023
Mar 9, 2023
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Intention to grant (signatures)
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Mar 9, 2023
Text intended for grant (clean copy)
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Mar 9, 2023
Feb 7, 2023
(Electronic) Receipt
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Feb 7, 2023
Letter accompanying subsequently filed items
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Feb 7, 2023
Dec 12, 2022
Annex to the communication
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Dec 12, 2022
Communication from the Examining Division
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Nov 17, 2022
Nov 14, 2022
Citation filed by a third party
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Nov 14, 2022
Citation filed by a third party
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Nov 14, 2022
Citation filed by a third party
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Nov 14, 2022
Citation filed by a third party
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Nov 14, 2022
Observations by third parties
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Nov 14, 2022
Patent document filed by a Third party
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Nov 14, 2022
Patent document filed by a Third party
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Oct 24, 2022
(Electronic) Receipt
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Oct 24, 2022
Amended claims with annotations
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Oct 24, 2022
Amended description with annotations
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Oct 24, 2022
Claims
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Oct 24, 2022
Description
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Oct 24, 2022
Letter accompanying subsequently filed items
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Oct 24, 2022
Sep 21, 2022
Sep 14, 2022
Non-patent literature filed by a third party
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Sep 14, 2022
Observations by third parties
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Sep 14, 2022
Patent document filed by a Third party
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Sep 2, 2022
Annex to a communication
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Sep 2, 2022
Annex to the communication
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Sep 2, 2022
Communication from the Examining Division
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Jul 5, 2022
(Electronic) Receipt
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Jul 5, 2022
Amended claims with annotations
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Jul 5, 2022
Amended description with annotations
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Jul 5, 2022
Claims
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Jul 5, 2022
Description
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Jul 5, 2022
Letter accompanying subsequently filed items
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Jul 5, 2022
Apr 21, 2022
Annex to a communication
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Apr 21, 2022
Annex to a communication
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Apr 21, 2022
Annex to the communication
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Apr 21, 2022
Communication from the Examining Division
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Apr 14, 2022
Examination started
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Mar 21, 2022
Feb 25, 2022
Note on telephone consultation
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Feb 23, 2022
(Electronic) Receipt
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Feb 23, 2022
Letter accompanying subsequently filed items
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Feb 16, 2022
Notification of forthcoming publication
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Aug 20, 2021
(Electronic) Receipt
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Aug 20, 2021
Aug 20, 2021
Amended claims with annotations
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Aug 20, 2021
Amendments received before examination
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Aug 20, 2021
Letter accompanying subsequently filed items
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Mar 5, 2021
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European search opinion
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Mar 5, 2021
European search report
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Mar 5, 2021
Information on Search Strategy
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Feb 24, 2021
Search started
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Nov 2, 2020
Communication to designated inventor
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Nov 2, 2020
Communication to designated inventor
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Nov 2, 2020
Communication to designated inventor
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Nov 2, 2020
Communication to designated inventor
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Nov 2, 2020
Communication to designated inventor
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Nov 2, 2020
Communication to designated inventor
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Nov 2, 2020
Communication to designated inventor
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Nov 2, 2020
Communication to designated inventor
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Sep 9, 2020
Abstract
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Sep 9, 2020
Sep 9, 2020
Claims
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Sep 9, 2020
Description
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Sep 9, 2020
Designation of inventor
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Sep 9, 2020
Drawings
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Sep 9, 2020
Request for grant of a European patent
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