• All sections
• H - Electricity
• H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
• H05B 3/50 - Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins

Patent holdings for IPC class H05B 3/50

Total number of patents in this class: 143

10-year publication summary

Principal owners for this class