ALEXANDRIA, Va., June 18 -- United States Patent no. 12,324,551, issued on June 10, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).
"Cleaning device" was invented by Bastiaan Johannes De Wit (Nuis, Netherlands), Matthijs Hendrikus Lubbers (Lieveren, Netherlands) and Pieter Kingma (Drachten, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning device comprises a surface interaction layer (ML), a cleaning fluid supply (CFF) provided with a cleaning fluid channel (CFC) at the surface interaction layer (ML) for supplying a cleaning fluid to a surface (F) through the surface interaction layer (ML) being in contact with the surface (F), and a dirty fluid drain (DFD) having a dir...