US Patent Issued to CHINA PETROLEUM & CHEMICAL, SINOPEC DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS on Sept. 1 for "Pressure swing adsorption device and rotary valve thereof" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,114, issued on Sept. 1, was assigned to CHINA PETROLEUM & CHEMICAL Corp. (Beijing) and SINOPEC DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS Co. LTD. (Dalian, China).

"Pressure swing adsorption device and rotary valve thereof" was invented by Shengzhong Zhang (Liaoning, China), Kai Qiao (Liaoning, China), Yanpeng Zhang (Liaoning, China), Dequan Fan (Liaoning, China), Yang Yang (Liaoning, China), Ming Gao (Liaoning, China) and Hongtao Wang (Liaoning, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary valve has a valve body and a valve sleeve disposed coaxially hermetically outside the valve body. The valve body has a first, a s...