ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,910, issued on June 17.
"Light-emitting device inside toy" was invented by Rongchang Cao (Shijiazhuang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to a light-emitting device inside a toy, comprising a fixed housing and a battery, wherein a battery chamber is arranged inside the fixed housing, and the battery is arranged in the battery chamber, the fixed housing comprises a base and a mounting seat, the base and the mounting seat are detachably connected by a fixing component, wherein a light-emitting device is connected to one side of the base away from the mounting seat, and a control device is arranged in ...