• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F21V - Functional features or details of lighting devices or systems thereof; structural combinations of lighting devices with other articles, not otherwise provided for
• F21V 29/77 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section

Patent holdings for IPC class F21V 29/77

Total number of patents in this class: 594

10-year publication summary

Principal owners for this class