ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,400,558, issued on Aug. 26, was assigned to Kaivac Inc. (Hamilton, Ohio).

"Cleaning system with on-board user-training functionality" was invented by Robert S. Robinson (Hamilton, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning system with on-board user-training functionality may include: a cleaning machine; an electronic playback device constructed and arranged for user training, with the playback device connected to the cleaning machine; and an electronic storage unit on which one or more items of training information are stored, with the training information relating to training a user in the operation or use of the cleaning machine. I...