ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,149, issued on May 13, was assigned to CHINA PETROLEUM AND CHEMICAL Corp. (Beijing) and PETROLEUM ENGINEERING RESEARCH INSTITUTE, SINOPEC (Beijing).
"Multiphase particle, manufacturing process and use thereof" was invented by Xuepeng Liu (Beijing), Wei Liu (Beijing), Shiming Zhou (Beijing), Shidong Ding (Beijing), Qian Tao (Beijing) and Qichun Wang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multiphase particle has a multiphase structure comprising a first phase and a second phase and has an average particle size of 0.1-100 mm. The multiphase particle has a high bulk strength and a good interface binding power with the hardened cement ...