ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,136, issued on April 22, was assigned to GUANGZHOU SALIAI BIOLOGICAL GENETIC ENGINEERING Co. LTD. (Guangdong, China) and GUANGZHOU SALIAI STEM CELL SCIENCE AND TECHNOLOGY Co. LTD. (Guangdong, China).

"Compositions containing exosomes from animal placenta, methods for producing the same and uses thereof" was invented by Haijia Chen (Guangdong, China), Jiaohua Jiang (Guangdong, China), Xuejia Li (Guangdong, China), Jiwang Xu (Guangdong, China), Keliang Pang (Guangdong, China), Donghuang Chen (Guangdong, China), Aimei Zhou (Guangdong, China), Li Tao (Guangdong, China), Zihao Cui (Guangdong, China), Baoyao Li (Guangdong, China) and Xinming Yan (Guangdong, China).

According to the abst...