ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,701, issued on Jan. 13, was assigned to NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY (Nanjing, China).

"Base material and preparation method thereof" was invented by Kajia Wei (Nanjing, China), Weiqing Han (Nanjing, China), Lu Wang (Nanjing, China), Siqi Liu (Nanjing, China), Run Liu (Nanjing, China) and Juncheng Dai (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A base material includes a base layer. The base layer includes a structured surface. The base layer includes a transition metal and a transition metal oxide, and a sum of the transition metal and a transition metal oxide accounts for at least 90 wt. % of the base layer. The ...