ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,969, issued on July 21, was assigned to TONGJI UNIVERSITY (Shanghai).
"Method for preparing a novel guanidine-based composite nanofiltration flat-sheet membrane" was invented by Qiaoying Wang (Shanghai), Tong Zhang (Shanghai), Zhiwei Wang (Shanghai), Hao Zhang (Shanghai), Rong Huang (Shanghai) and Xianfeng Li (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention belongs to the technical field of membrane-based water treatment and relates to a novel guanidine-based composite nanofiltration (NF) flat-sheet membrane, and a preparation method and application thereof. The present invention provides a method for preparing a guanid...