• All sections
• F - Mechanical engineeringlightingheatingweaponsblasting
• F21V - Functional features or details of lighting devices or systems thereofstructural combinations of lighting devices with other articles, not otherwise provided for
• F21V 29/71 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements

Patent holdings for IPC class F21V 29/71

Total number of patents in this class: 346

10-year publication summary

Principal owners for this class