US Patent Issued to China University of Petroleum (East China) on July 21 for "Modified graphite-coated soft particle and method for preparing same, and profile control and water shutoff agent and application thereof" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,807, issued on July 21, was assigned to China University of Petroleum (East China) (Qingdao, China).

"Modified graphite-coated soft particle and method for preparing same, and profile control and water shutoff agent and application thereof" was invented by Yong Zheng (Qingdao, China), Guang Zhao (Qingdao, China), Caili Dai (Qingdao, China), Dongfang Lv (Qingdao, China), Zhe Li (Chengdu, China), Qingfeng Liu (Qingdao, China), Peilun Li (Qingdao, China), Yifei Liu (Qingdao, China) and Yining Wu (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to the technical field of chemical profile control and water shut...