ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,546, issued on Feb. 10, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Fluid delivery device with hydrophobic surface" was invented by Yang Liu (Yorktown Heights, N.Y.) and Steven L. Wright (Cortlandt Manor, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the present invention are directed to a liquid delivery apparatus. A non-limiting example of the apparatus includes a substrate including a cavity formed in a surface of the substrate. The apparatus can also include a membrane disposed on the surface of the substrate covering an opening of the cavity. The apparatus can also include a hydrophobic layer disp...