• All sections
• G - Physics
• G01S - Radio direction-finding; radio navigation; determining distance or velocity by use of radio waves; locating or presence-detecting by use of the reflection or reradiation of radio waves; analogous arrangements using other waves
• G01S 3/808 - Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems

Patent holdings for IPC class G01S 3/808

Total number of patents in this class: 414

10-year publication summary

Principal owners for this class