ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,864, issued on July 22, was assigned to BSH Hausgerate GmbH (Munich).

"Cleaning system comprising a self-driving cleaning robot and a charging station, and method for moving the cleaning robot to the charging station" was invented by Maximilian Fremerey (Saal an der Saale, Germany), Sandeep Bairampalli (Bangalore, India), Ganesh Nithin (Bangalore, India) and Pratip Ghosh (Bangalore, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning system includes a self-driving cleaning robot and a charging station with a reference marker. The cleaning robot has an optical detection unit by way of which it detects the reference marker. The cleaning ro...