Patent No. EP1580025 (titled "Security Element With Features Which Can Be Recognised Under A Specific Viewing Angle") was filed by Hueck Folien Gesmbh on Mar 8, 2005. The application was issued on Oct 14, 2015.

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 13, 2016 | GILL JENNINGS & EVERY |
| GIESECKEDEVRIENT CURRENCY TECHNOLOGY | Jul 13, 2016 | KLUNKER |
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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