Patent No. EP2822720 (titled "Parting Blade And Blade Holder Configured For Conveyance Of Pressurized Coolant") was filed by Iscar on Feb 11, 2013. The application was issued on Jul 20, 2016.

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 |
|---|---|---|
| KENNAMETAL | Apr 20, 2017 | PRINZ & PARTNER MBB |
| MITSUBISHI MATERIALS | Apr 20, 2017 | HOFFMANN EITLE |
| SECO TOOLS | Apr 20, 2017 | WSL PATENTANWALTE PARTNERSCHAFT MBB |
| CERATIZIT AUSTRIA GESELLSCHAFT | Mar 20, 2017 | CIESLA |
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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