ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,910, issued on Sept. 15, was assigned to MARINER 3S AG (Remigen, Switzerland).

"Underwater cleaning robot" was invented by Roland Winkler (Wil AG, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An underwater cleaning robot contains a movement device for moving the underwater cleaning robot under water, a cleaning device for cleaning an object located under water, a control device for controlling the movement device and/or the cleaning device and a communication device for receiving and/or transmitting signals from outside the underwater cleaning robot and vice versa. The communication device contains a first ultrasonic transducer for re...