ALEXANDRIA, Va., July 9 -- United States Patent no. 12,349,784, issued on July 8, was assigned to Colgate-Palmolive Co. (New York).

"Oral hygiene systems and methods" was invented by Thomas Serval (Neuilly-sur-Seine, France) and Yann Nicolas (Neuilly-sur-Seine, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for promoting compliance with an oral hygiene regimen includes displaying, on a display device, a representation of at least a portion of a set of teeth of a user. The method also includes overlaying an indicium on the representation such that the indicium is associated with a first section of the representation. Responsive to a determination, via at least one of one or more processors, th...