ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,439,731, issued on Oct. 7, was assigned to Universal Electronics Inc. (Scottsdale, Ariz.).

"Controlling device having an energy harvesting feature" was invented by Rex Xu (Foothill Ranch, Calif.), Steven McAllister (London), Brian Ryan (Rowlands Gill, Great Britain) and Huub Mulhof (Borne, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A controlling device has at least a light-based energy harvesting system disposed within the controlling device housing. The light-based energy harvesting system is operative to supply power to at least one of a processing device and a transmitter of the controlling device. The light-based energy harvesting sys...