ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,153, issued on April 15, was assigned to Keenon Robotics Co. Ltd. (Shanghai).

"Control method for delivery robots, delivery system and computer-readable storage medium" was invented by Meihua Zhang (Shanghai), Yuhao Liu (Shanghai) and Yayun Yang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a control method for delivery robots, wherein a distribution area has a preset home point. The control method includes: identifying a second delivery robot that obstructs a first delivery robot, wherein the first delivery robot is in a working state of heading to one or more target positions, and the second delivery robot is in an idle stat...