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The patent EP3500382 was granted to Kennametal on Aug 24, 2022. The application was filed on Apr 25, 2017 under application number EP17841779A. 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 |
|---|---|---|---|
| ISCAR | May 24, 2023 | 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 | US2013129429 |
| DESCRIPTION | US2014341660 |
| DESCRIPTION | US2016031020 |
| INTERNATIONAL-SEARCH-REPORT | US2011217131 |
| INTERNATIONAL-SEARCH-REPORT | US2013142580 |
| INTERNATIONAL-SEARCH-REPORT | US5542793 |
| INTERNATIONAL-SEARCH-REPORT | US5882150 |
| INTERNATIONAL-SEARCH-REPORT | US6196770 |
| OPPOSITION | DE19609820 |
| OPPOSITION | EP0094921 |
| OPPOSITION | EP0278389 |
| OPPOSITION | EP1129806 |
| OPPOSITION | EP1322452 |
| OPPOSITION | EP2167264 |
| OPPOSITION | FR2837732 |
| OPPOSITION | GB2240740 |
| OPPOSITION | JP2005022063 |
| OPPOSITION | JP2011206887 |
| OPPOSITION | JPH02100728U |
| OPPOSITION | JPH02117813U |
| OPPOSITION | US2013129429 |
| OPPOSITION | US2014341660 |
| OPPOSITION | US2016031020 |
| OPPOSITION | US4919573 |
| OPPOSITION | US5542793 |
| OPPOSITION | US6203251 |
| OPPOSITION | US7160062 |
| SEARCH | DE19609820 |
| SEARCH | EP0094921 |
| SEARCH | EP0278389 |
| SEARCH | EP1322452 |
| SEARCH | EP2167264 |
| SEARCH | US2013129429 |
| SEARCH | US2014341660 |
| SEARCH | US2016031020 |
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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Decision to grant a European patent
Search/Exam
Jul 13, 2022
(Electronic) Receipt
Search/Exam
Jul 13, 2022
Filing of the translations of the claims
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Jul 13, 2022
French translation of claims
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Jul 13, 2022
German translation of the claims
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Jul 13, 2022
Letter concerning fees and payments
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Mar 31, 2022
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Intention to grant (signatures)
Search/Exam
Mar 31, 2022
Text intended for grant (clean copy)
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Mar 31, 2022
Feb 3, 2022
Examination started
Search/Exam
Sep 28, 2020
(Electronic) Receipt
Search/Exam
Sep 28, 2020
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Amended claims with annotations
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Sep 28, 2020
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Amended description with annotations
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Sep 28, 2020
Amendments received before examination
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Sep 28, 2020
Letter accompanying subsequently filed items
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Mar 19, 2020
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European search opinion
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Mar 2, 2020
Information on Search Strategy
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Mar 2, 2020
Supplementary European search report
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Feb 17, 2020
Search started
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May 29, 2019
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Payment submission rejected
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Mar 22, 2019
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Mar 22, 2019
Communication to designated inventor
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Mar 5, 2019
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(Electronic) Receipt
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Mar 4, 2019
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Request for entry into the European phase
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Jan 4, 2019
Information on entry into European phase
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Mar 12, 2018
Feb 22, 2018
Copy of the international search report
Search/Exam
Feb 22, 2018
Published international application - A1
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