ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,832, issued on Oct. 14, was assigned to Teledyne FLIR Defense Inc. (Stillwater, Okla.).

"Mobile surveillance systems extendable mast control systems and methods" was invented by Trevor Davis (Saanichton, Canada), Edward Butler (North Saanich, Canada) and Bruce Haines (Victoria, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Mobile surveillance systems (MSSs) and related techniques are provided to improve the safety and operational flexibility of unmanned aircraft systems (UASs) and unmanned aerial vehicles (UAVs). An MMS may include an extendable mast, a motor configured to control movement of the extendable mast between a stowed position and...