• All sections
• H - Electricity
• H03H - Impedance networks, e.g. resonant circuitsresonators
• H03H 3/04 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient

Patent holdings for IPC class H03H 3/04

Total number of patents in this class: 439

10-year publication summary

Principal owners for this class