Patent 8257600 was granted and assigned to United Technologies on September, 2012 by the United States Patent and Trademark Office.
A method of chemically milling a workpiece includes depositing a masking material on portions of the workpiece according to a predefined masking pattern such that other portions of the workpiece that are desired to be milled are unmasked. Material from the unmasked desired milling areas of the workpiece is chemically removed.