IBM has received US Patent No. 7,740,472, "Method and device for flowing a liquid on a surface." The patent describes a device for flowing liquid across a surface. Liquid is supplied to one end of the flow path and pressure is applied to retain the liquid on the surface. The liquid is then received from the other end of the flow path and pressure is applied to continuously draw the liquid from one end of the surface to the other. According to the patent, the claimed devices could be used in surface patterning.