Patent No. EP3553706 (titled "Anti-Counterfeiting Element And Anti-Counterfeiting Product") was filed by China Banknote Printing And Minting on Nov 22, 2017. The application was issued on Dec 22, 2021.

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 | Sep 19, 2022 | PATENTANWALTE GEYER |
| HUECK FOLIEN GESELLSCHAFT | Sep 16, 2022 | BURGER |
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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