• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F21S - Non-portable lighting devices; systems thereof; vehicle lighting devices specially adapted for vehicle exteriors
• F21S 41/663 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources

Patent holdings for IPC class F21S 41/663

Total number of patents in this class: 621

10-year publication summary

Principal owners for this class