ALEXANDRIA, Va., June 16 -- United States Patent no. 12,655,983, issued on June 16, was assigned to Fujian Ecotop New Material Co. Ltd. (Zhangzhou, China).
"Unpowered smokeless stove" was invented by Hongbin Wang (Xiamen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An unpowered smokeless stove is provided, and includes a housing, an inner barrel, and a top ring, the inner barrel is placed on the housing by means of the top ring; the inner barrel comprising an outer wall and a thermal insulation layer, the outer wall comprising an outer layer and a inner layer, a side of the inner layer being provided with combustion holes and air inlet holes, the thermal insulation layer includes a first thermal ins...