ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,705,991, issued on Aug. 11, was assigned to MYDEFENCE A/S (Norresundby, Denmark).

"Drone encroachment avoidance monitor" was invented by Timothy Just (Victorville, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are examples of systems, apparatus, methods and computer program products for locating unmanned aerial vehicles (UAVs). A region of airspace may be scanned with two scanning apparatuses. Each scanning apparatus may include one or more directional Radio Frequency (RF) antennae. The two scanning apparatuses may have different locations. Radio frequency signals emitted by a UAV can be received at each of the two scanning apparatuses...