Patent No. EP2877957 (titled "Method And Device For Protecting Against Fault Attack(S) An Electronic Device Using A Cache Memory") was filed by Gemalto on Jul 19, 2013. The application was issued on Mar 9, 2022.

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 |
|---|---|---|
| ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB | Feb 17, 2020 | ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB |
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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