ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,808, issued on Oct. 27, was assigned to Zhongshan Junwei Home Appliances Co. Ltd. (Zhongshan, China).

"Biomass fuel burning furnace" was invented by Enquan Li (Zhongshan, China), Guangzhi Mai (Zhongshan, China), Dongsheng Guo (Zhongshan, China) and Zhensheng He (Zhongshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the present disclosure is a biomass fuel burning furnace, including: a furnace body, provided with a first air inlet and a fuel inlet, provided with a first combustion chamber, a second combustion chamber, and a third combustion chamber sequentially communicating within the furnace body, wherein the first combustion...