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The patent EP2794160 was granted to Iscar on Nov 30, 2022. The application was filed on Nov 20, 2012 under application number EP12809358A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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| MITSUBISHI MATERIALS | Jan 23, 2020 | HOFFMANN EITLE | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US3541655 |
| DESCRIPTION | US4294566 |
| DESCRIPTION | US5957629 |
| DESCRIPTION | US7037051 |
| EXAMINATION | WO2013082918 |
| INTERNATIONAL-SEARCH-REPORT | US2010272526 |
| INTERNATIONAL-SEARCH-REPORT | US3541655 |
| INTERNATIONAL-SEARCH-REPORT | US4294566 |
| INTERNATIONAL-SEARCH-REPORT | US4729697 |
| INTERNATIONAL-SEARCH-REPORT | WO2010023659 |
| INTERNATIONAL-SEARCH-REPORT | WO9700750 |
| OPPOSITION | EP2198997 |
| OPPOSITION | EP2489454 |
| OPPOSITION | EP2596889 |
| OPPOSITION | JP1415183S |
| OPPOSITION | JP1415558S |
| OPPOSITION | JPH077809U |
| OPPOSITION | JPS4751309B |
| OPPOSITION | JPS58154004U |
| OPPOSITION | JPS6239106 |
| OPPOSITION | KR100698383B |
| OPPOSITION | US2004208714 |
| OPPOSITION | US2010272526 |
| OPPOSITION | US3541655 |
| OPPOSITION | US4294566 |
| OPPOSITION | US4729697 |
| OPPOSITION | US5957629 |
| OPPOSITION | US7037051 |
| OPPOSITION | WO0037205 |
| OPPOSITION | WO2008120186 |
| OPPOSITION | WO2010023659 |
| OPPOSITION | WO2010093120 |
| OPPOSITION | WO2011046121 |
| OPPOSITION | WO2012099355 |
| OPPOSITION | WO2013082918 |
| OPPOSITION | WO2013093907 |
| OPPOSITION | WO9700750 |
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.
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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
Search/Exam
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Filing of the translations of the claims
Search/Exam
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Amended claims with annotations
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Mar 28, 2017
Claims
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Annex to the communication
Search/Exam
Feb 17, 2017
Communication from the Examining Division
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Feb 7, 2017
Examination started
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Mar 12, 2015
Submission concerning representation
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Amended claims with annotations
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Feb 4, 2015
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Communication to designated inventor
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Communication to designated inventor
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(Electronic) Receipt
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Request for entry into the European phase
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May 6, 2014
Information on entry into European phase
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Copy of the international search report
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Jun 27, 2013
Published international application - A1
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Dec 31, 2012
Abstract
PCTISA
Dec 31, 2012
Claims
PCTISA
Dec 31, 2012
Description
PCTISA
Dec 31, 2012
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