Patent No. EP4222221 (titled "Use Of A Paint Formulation Containing Metal-Effect Pigments For Painting A Vehicle Fitted With A Radar Sensor And A Lidar Sensor") was filed by Schlenk Metallic Pigments on Oct 13, 2022. The application was issued on Dec 20, 2023.

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 |
|---|---|---|
| ECKART | Sep 20, 2024 | STRYCH |
| SUN CHEMICAL COLORS & EFFECTS | Sep 20, 2024 | ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB |
| PPG INDUSTRIES | Sep 19, 2024 | F & E PATENT |
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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