ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,979, issued on March 17, was assigned to Beijing BOE Optoelectronics Technology Co. Ltd. (Beijing) and BOE Technology Group Co. Ltd. (Beijing).

"Substrate and preparation method thereof, integrated passive device, and electronic apparatus" was invented by Yifan Wu (Beijing), Yue Li (Beijing), Yuelei Xiao (Beijing), Kidong Han (Beijing), Qichang An (Beijing), Yulin Feng (Beijing), Xue Cao (Beijing), Wenbo Chang (Beijing), Yi Zhou (Beijing), Lihui Wang (Beijing), Qiuxu Wei (Beijing) and Feng Qu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a substrate, a method for preparing the substrate, an integrated passive device, and an e...