ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,992, issued on Oct. 27, was assigned to DELTA ELECTRONICS INC. (Taoyuan City, Taiwan).

"Material recognition system and method" was invented by Chia-Ju Peng (Taoyuan City, Taiwan), Po-Yu Cheng (Taoyuan City, Taiwan), Po-Kai Huang (Taoyuan City, Taiwan) and Wei-Cheng Tian (Taoyuan City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An embodiment of the invention provides a material recognition system. The material recognition system may include a fetching device, at least one sensing device and a processing device. The fetching device may fetch a target object. Each sensing device may include an ultrasound transmitter and an ultrasound receiv...