ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,866, issued on May 20, was assigned to Shanghai Normal University (Shanghai) and Shangdong Nonghuanlvpin Environmental Co. Ltd (Linyi, China).

"Carbon fixation material for adsorbing heavy metals in soil and preparation method thereof" was invented by Liang Meng (Shanghai), Qishi Luo (Shanghai), Xiwei Liu (Linyi, China), Xin Gao (Linyi, China), Huishu Zhuang (Linyi, China), Huarui Nie (Shanghai), Haitao Yin (Shanghai), Li Li (Shanghai), Jiamu Xiao (Shanghai) and Haibo Gao (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A carbon fixation material for adsorbing heavy metals in soil and a preparation method thereof are provided. The carbon fix...