ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,223, issued on May 6, was assigned to Tung Hing Plastic Manufactory Ltd. (Hong Kong, Hong Kong).
"Floor cleaning apparatus and liquid delivery assembly for use in floor cleaning apparatus" was invented by Sven Eschrich (Hong Kong, Hong Kong), Kin Wong Yau (Hong Kong, Hong Kong) and Heung Kin Chan (Hong Kong, Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "A floor cleaning apparatus. The apparatus has a cleaning head portion for engaging a floor surface during cleaning, an upstanding portion for maneuvering movement of the cleaning head portion, a liquid delivery assembly, a handle portion extending from the upstanding portion and a sealed l...