Patent No. EP2953798 (titled "Optically Variable Surface Pattern") was filed by Giesecke & Devrient on Jan 30, 2014. The application was issued on Oct 4, 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 |
|---|---|---|
| DE LA RUE | Jul 4, 2018 | GILL JENNINGS & EVERY |
| LEONHARD KURZ STIFTUNG | Jul 4, 2018 | ZINSINGER |
| OBERTHUR FIDUCIAIRE | Jul 4, 2018 | CABINET NONY |
| OBERTHUR FIDUCIAIRE | Jul 4, 2018 | IPSILON |
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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