ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,594, issued on April 29, was assigned to DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES (Dalian, China).

"Fluidized bed reactor, device and method for preparing low-carbon olefins from oxygen-containing compound" was invented by Mao Ye (Dalian, China), Tao Zhang (Dalian, China), Jinling Zhang (Dalian, China), Shuliang Xu (Dalian, China), Hailong Tang (Dalian, China), Xiangao Wang (Dalian, China), Cheng Zhang (Dalian, China), Jinming Jia (Dalian, China), Jing Wang (Dalian, China), Hua Li (Dalian, China), Chenggong Li (Dalian, China) and Zhongmin Liu (Dalian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluidized bed reacto...