• 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 45/48 - Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device

Patent holdings for IPC class F21S 45/48

Total number of patents in this class: 146

10-year publication summary

Principal owners for this class