• All sections
• H - Electricity
• H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
• H05B 41/231 - Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC having no starting switch for lamps not having an auxiliary starting electrode for high-pressure lamps

Patent holdings for IPC class H05B 41/231

Total number of patents in this class: 4

10-year publication summary

Principal owners for this class