ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,615, issued on March 25, was assigned to Nankai University (Tianjin, China).

"Stacked circulatable microbial electrochemical reactor and degradation method of petroleum hydrocarbon contaminated soil" was invented by Qixing Zhou (Jinnan District, China), Tian Li (Jinnan District, China) and Xin Wang (Jinnan District, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A stacked circulatable microbial electrochemical reactor and a degradation method of petroleum hydrocarbon contaminated soil are provided, which belong to the field of microbial electrochemical soil remediation. The stacked circulatable microbial electrochemical reactor of the present...