Patent No. EP3034563 (titled "Gold-Coloured Effect Pigments With High Chroma And A High Brilliance, Method For Their Preparation And Their Use") was filed by Eckart on Dec 19, 2014. The application was issued on Oct 16, 2024.

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 |
|---|---|---|
| SUN CHEMICAL COLORS & EFFECTS | Nov 19, 2019 | ALTMANN |
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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