ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,535, issued on Oct. 21, was assigned to Chromatic Technologies Inc. (Colorado Springs, Colo.).
"Compositions for wetness indication" was invented by Timothy J. Owen (Colorado Springs, Colo.) and William R. Bowers (Colorado Springs, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A composition, and methods of making and using such a composition, whereby the composition can include a printable ink formulation having a colorant which undergoes a visible color change upon exposure to a wetness threshold. The colorant can be highly resistant to leaching. Additionally, the colorant can be resistant to premature activation via ambient moisture or humi...