ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,081, issued on March 17, was assigned to SAVANT TECHNOLOGIES LLC (East Cleveland, Ohio).

"Lighting device" was invented by Ruojian Zhu (Shanghai) and Qianchun Mao (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a lighting device that includes a light source assembly having at least two light sources with different light emitting characteristics, turned on and turned off independently to emit a light beam by one light source of the at least two light sources; a lens module, arranged on a light path of the light beam to receive the light beam; and an optical component, arranged on the light path to receive the light beam from the...