Phase change inks containing wax-soluble near-infrared dyes Grant US-9738811-B2 United States of America 22 Aug 2017
Dye compounds, method of making the compounds and ink composition employing the compounds Grant US-9193869-B2 United States of America 24 Nov 2015
Dye compound and method of making the compound Grant US-8884012-B1 United States of America 11 Nov 2014