Patent 9480980 was granted and assigned to Xerox on November, 2016 by the United States Patent and Trademark Office.
An apparatus produces chemical assay devices from a hydrophilic substrate, hydrophobic materials, and a chemical reagent. The apparatus includes a first print zone that forms hydrophobic material in a predetermined arrangement on the hydrophilic substrate, a structure formation unit configured to enable the first layer of the hydrophobic material to penetrate the hydrophilic substrate.