ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,621, issued on March 18, was assigned to EPICMEMS(XIAMEN) Co. LTD. (Fujian, China).

"Radio frequency filter" was invented by Jiang Jiang (Fujian, China), Ping Li (Fujian, China), Wei Wang (Fujian, China), Mingguo Zhu (Fujian, China), Nianchu Hu (Fujian, China) and Bin Jia (Fujian, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a radio frequency filter, including: a substrate; a supporting electrode protruded on a front surface of the substrate; and a thin film structure formed on the substrate and spaced with the substrate by the supporting electrode. An end surface of a top end of the supporting electrode is i...