• All sections
• H - Electricity
• H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
• H05B 41/233 - 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 low-pressure lamps using resonance circuitry

Patent holdings for IPC class H05B 41/233

Total number of patents in this class: 3

10-year publication summary

Principal owners for this class