• All sections
• G - Physics
• G01S - Radio direction-findingradio navigationdetermining distance or velocity by use of radio waveslocating or presence-detecting by use of the reflection or reradiation of radio wavesanalogous arrangements using other waves
• G01S 13/78 - Systems using reradiation of radio waves, e.g. secondary radar systemsAnalogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe

Patent holdings for IPC class G01S 13/78

Total number of patents in this class: 224

10-year publication summary

Principal owners for this class