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The patent EP3663417 was granted to Primetals Japan on Jan 5, 2022. The application was filed on Nov 20, 2017 under application number EP17932170A. 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 |
|---|---|---|---|
| SMS GROUP | Oct 5, 2022 | HEMMERICH & KOLLEGEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP4977878B |
| INTERNATIONAL-SEARCH-REPORT | JP2001232413 |
| INTERNATIONAL-SEARCH-REPORT | JP2007277668 |
| INTERNATIONAL-SEARCH-REPORT | JP2011094162 |
| INTERNATIONAL-SEARCH-REPORT | JPS57147260U |
| OPPOSITION | CN202238955U |
| OPPOSITION | EP2100673 |
| OPPOSITION | EP2329894 |
| OPPOSITION | EP2495343 |
| OPPOSITION | JP2001001027 |
| OPPOSITION | JP2001232413 |
| OPPOSITION | JP2003290813 |
| OPPOSITION | JP2007277668 |
| OPPOSITION | JP2008212943 |
| OPPOSITION | JP2010167501 |
| OPPOSITION | JP2011094162 |
| OPPOSITION | JPH08238518 |
| OPPOSITION | JPS57147260U |
| OPPOSITION | US2011018178 |
| SEARCH | EP2100673 |
| SEARCH | EP2329894 |
| SEARCH | EP2495343 |
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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Description
OPPO
Jun 23, 2025
Description
OPPO
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OPPO
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Decision to grant a European patent
Search/Exam
Nov 2, 2021
Oct 26, 2021
(Electronic) Receipt
Search/Exam
Oct 26, 2021
Filing of the translations of the claims
Search/Exam
Oct 26, 2021
French translation of claims
Search/Exam
Oct 26, 2021
German translation of the claims
Search/Exam
Jul 15, 2021
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Intention to grant (signatures)
Search/Exam
Jul 15, 2021
Text intended for grant (clean copy)
Search/Exam
Jul 15, 2021
Apr 21, 2021
(Electronic) Receipt
Search/Exam
Apr 21, 2021
Amended claims with annotations
Search/Exam
Apr 21, 2021
Amended claims with annotations
Search/Exam
Apr 21, 2021
Amended claims with annotations
Search/Exam
Apr 21, 2021
Amended claims with annotations
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Apr 21, 2021
Claims
Search/Exam
Apr 21, 2021
Claims
Search/Exam
Apr 21, 2021
Claims
Search/Exam
Apr 21, 2021
Claims
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Apr 21, 2021
Description
Search/Exam
Apr 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 21, 2021
Dec 22, 2020
Annex to the communication
Search/Exam
Dec 22, 2020
Communication from the Examining Division
Search/Exam
Dec 16, 2020
Examination started
Search/Exam
Nov 30, 2020
(Electronic) Receipt
Search/Exam
Nov 30, 2020
Nov 30, 2020
Amended claims with annotations
Search/Exam
Nov 30, 2020
Nov 30, 2020
Amendments received before examination
Search/Exam
Nov 30, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 28, 2020
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European search opinion
Search/Exam
Jul 10, 2020
Information on Search Strategy
Search/Exam
Jul 10, 2020
Supplementary European search report
Search/Exam
Jul 1, 2020
Search started
Search/Exam
Jun 11, 2020
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May 13, 2020
Notification of forthcoming publication
Search/Exam
May 4, 2020
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Apr 23, 2020
Enquiry with the International Bureau
Search/Exam
Mar 16, 2020
Mar 16, 2020
Enquiry with the International Bureau
Search/Exam
Mar 16, 2020
Mar 13, 2020
Communication to designated inventor
Search/Exam
Mar 13, 2020
Communication to designated inventor
Search/Exam
Mar 13, 2020
Communication to designated inventor
Search/Exam
Mar 6, 2020
(Electronic) Receipt
Search/Exam
Mar 6, 2020
Abstract
Search/Exam
Mar 6, 2020
Claims
Search/Exam
Mar 6, 2020
Description
Search/Exam
Mar 6, 2020
Drawings
Search/Exam
Mar 6, 2020
Request for entry into the European phase
Search/Exam
May 23, 2019
Copy of the international search report
Search/Exam
May 23, 2019
May 23, 2019
International publication pamphlet
Search/Exam