ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,810, issued on Jan. 27, was assigned to AI Inc. (Toronto).

"Method for tracking movement of a mobile robotic device" was invented by Ali Ebrahimi Afrouzi (Henderson, Nev.), Lukas Robinson (York, Canada), Chen Zhang (Redmond, Wash.) and Brian Highfill (Castro Valley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a tangible, non-transitory, machine readable medium storing instructions that when executed by the processor effectuates operations including: capturing visual readings to objects within an environment; capturing readings of wheel rotation; capturing readings of a driving surface; capturing distances to obstacles; determin...