• All sections
• H - Electricity
• H01Q - Antennas, i.e. radio aerials
• H01Q 19/13 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination

Patent holdings for IPC class H01Q 19/13

Total number of patents in this class: 412

10-year publication summary

Principal owners for this class