ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,247, issued on March 25, was assigned to CHENGDU QINCHUAN IOT TECHNOLOGY Co. LTD. (Chengdu, China).

"Methods for managing cleaning routes in smart cities, internet of things systems, and storage mediums" was invented by Zehua Shao (Chengdu, China), Yuefei Wu (Chengdu, China), Junyan Zhou (Chengdu, China), Yaqiang Quan (Chengdu, China) and Xiaojun Wei (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure provides a method for managing a cleaning route in a smart city, an Internet of Things system and storage medium. The method includes: obtaining target information of a target area within a preset time period based on an obje...