ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,647, issued on Dec. 30, was assigned to Guangzhou Joyson Cleaning Products Co. Ltd. (Guangdong, China).
"Detergent tablet" was invented by Jianfeng Sun (Guangdong, China), Fenglei Li (Guangdong, China), Min Sun (Guangdong, China), Xiangjian Zeng (Guangdong, China), Na Lan (Guangdong, China) and Yumei Huang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the present application is a detergent tablet, including the following components by weight: 8-34 parts of water-soluble polymer; 14-50 parts of surfactant; 0.1-50 parts of enzyme preparation; 0.1-50 parts of softener preparation; 1 to 10 parts of foaming agent preparati...