ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,414,666, issued on Sept. 16, was assigned to SharkNinja Operating LLC (Needham, Mass.).
"Cleaning device with fluid tank empty detection" was invented by Fai Xie (Jiangsu, China), Shady Wei (Guangxi, China), Teddy Li (Jiangsu, China), Kevin Richard Kennedy (Quincy, Mass.) and Bob Yin (Jiangsu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Various cleaning devices with fluid tank empty detection and methods related thereto are provided. In general, a cleaning device can be configured to determine whether a fluid container is empty using an electromotive force (EMF) at a fluid pump configured to pump fluid from the fluid container. When the fluid ...