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The patent EP3031948 was granted to Kennametal on Mar 15, 2017. The application was filed on Jan 20, 2009 under application number EP15185878A. 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 |
|---|---|---|---|
| MITSUBISHI MATERIALS | Dec 13, 2017 | GILLE HRABAL | ADMISSIBLE |
| MITSUBISHI MATERIALS | Dec 13, 2017 | GILLE HRABAL PARTNERSCHAFTSGESELLSCHAFT MBB PATENTANWALTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102007000512 |
| DESCRIPTION | US6238739 |
| DESCRIPTION | WO03085152 |
| DESCRIPTION | WO2007003648 |
| OPPOSITION | DE19630791 |
| OPPOSITION | EP1470879 |
| OPPOSITION | JP2001341008 |
| OPPOSITION | JP2002263911 |
| OPPOSITION | JPH09125249 |
| OPPOSITION | US2011003216 |
| OPPOSITION | WO2007003648 |
| SEARCH | EP0899359 |
| SEARCH | EP1122334 |
| SEARCH | EP1825943 |
| SEARCH | WO0070120 |
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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Oct 24, 2022
Oct 17, 2022
Refund of fees
Appeal
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 4, 2022
(Electronic) Receipt
Appeal
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Withdrawal of an appeal
Appeal
Nov 18, 2021
Nov 15, 2021
Nov 12, 2021
(Electronic) Receipt
Appeal
Nov 12, 2021
Nov 12, 2021
Nov 11, 2021
Advice of delivery
Appeal
Nov 11, 2021
Advice of delivery
Appeal
Nov 3, 2021
Nov 3, 2021
Nov 3, 2021
Oct 28, 2021
Jun 10, 2021
Feb 24, 2021
Oct 27, 2020
Jul 9, 2020
Jul 6, 2020
(Electronic) Receipt
Appeal
Jul 6, 2020
Jul 6, 2020
Jul 6, 2020
Dec 20, 2019
Dec 6, 2019
(Electronic) Receipt
Appeal
Dec 6, 2019
Dec 6, 2019
Dec 6, 2019
Dec 6, 2019
Dec 6, 2019
Reply to appeal
Appeal
Aug 8, 2019
Aug 5, 2019
(Electronic) Receipt
Appeal
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Jun 12, 2019
Jun 12, 2019
Jun 4, 2019
(Electronic) Receipt
Appeal
Jun 4, 2019
Jun 4, 2019
Notice of appeal
Appeal
Jun 4, 2019
Processing of an appeal
Appeal
Apr 23, 2019
Apr 15, 2019
Apr 15, 2019
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Apr 10, 2019
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Means of redress
OPPO
Apr 4, 2019
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Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Dec 3, 2018
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Oct 31, 2018
Oct 26, 2018
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Mar 16, 2017
Feb 16, 2017
Decision to grant a European patent
Search/Exam
Jan 31, 2017
English translation of the claims
Search/Exam
Jan 31, 2017
Filing of the translations of the claims
Search/Exam
Jan 31, 2017
French translation of claims
Search/Exam
Jan 31, 2017
Payment of fees and costs
Search/Exam
Dec 5, 2016
Dec 5, 2016
Dec 5, 2016
Intention to grant (signatures)
Search/Exam
Dec 5, 2016
Text intended for grant (clean copy)
Search/Exam
Dec 5, 2016
Nov 21, 2016
Examination started
Search/Exam
Jul 20, 2016
Priority search results
Search/Exam
Jul 20, 2016
Jul 19, 2016
Jun 22, 2016
Maintenance of the application
Search/Exam
Jun 20, 2016
Jun 15, 2016
Refund of fees
Search/Exam
May 19, 2016
Notification of forthcoming publication
Search/Exam
May 13, 2016
May 13, 2016
European search opinion
Search/Exam
May 13, 2016
European search report
Search/Exam
May 13, 2016
Information on Search Strategy
Search/Exam
May 6, 2016
Search started
Search/Exam
Nov 18, 2015
Communication to designated inventor
Search/Exam
Nov 18, 2015
Communication to designated inventor
Search/Exam
Nov 18, 2015
Communication to designated inventor
Search/Exam
Nov 6, 2015
Designation of inventor
Search/Exam
Nov 6, 2015
Letter concerning the inventor
Search/Exam
Nov 3, 2015
Deficiency in designation of inventor
Search/Exam
Sep 18, 2015
Abstract
Search/Exam
Sep 18, 2015
Sep 18, 2015
Claims
Search/Exam
Sep 18, 2015
Description
Search/Exam
Sep 18, 2015
Request for grant of a European patent
Search/Exam
Oct 7, 2009