ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,261, issued on Sept. 15, was assigned to Cyclean Inc. (Buffalo Grove, Ill.).
"Light emitting device emitting UV-C radiation at different wavelengths upward and downward" was invented by William Hood (Lake Bluff, Ill.) and Chase Hood (Barrington, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment, a light emitting device comprises one or more first light sources emitting UV-C light downward to irradiate the environment below the light emitting device (such as air and the floor and other surfaces). In another embodiment, the light emitting device comprises one or more second light sources emitting UV-C light of a different peak wav...