ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,035, issued on Oct. 6, was assigned to Singletto Inc. (Seattle).
"Air sanitization" was invented by James Chongchu Chen (Clyde Hill, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus and method to actively purify and sanitize air. A flow of air is directed over a surface that includes a photosensitizer formulation which is activated by light to emit singlet oxygen that inactivates and/or kills pathogens in the air flow. A fan device is employed to generate and direct the flow of air. The fan device includes the photosensitizer formulation disposed on fan blades, rotatable fan shafts, and interior surfaces of a housing. The flow of air...