Patent No. EP3083263 (titled "Process For The Surface Treatment Of A Security Document And Associated Security Document") was filed by Oberthur Fiduciaire on Dec 18, 2014. The application was issued on Jun 21, 2017.

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 |
|---|---|---|
| GIESECKEDEVRIENT CURRENCY TECHNOLOGY | Mar 20, 2018 | KLUNKER PATENTANWALTE PARTG MBB |
| GIESECKEDEVRIENT MOBILE SECURITY | Mar 20, 2018 | - |
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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