ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,447, issued on July 15.
"Embedded concrete marking" was invented by Chris Paisley (Washington Court House, Ohio) and Kevin Paisley (Washington Court House, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "An improved manner of marking concrete is provided by an embedded concrete marking. The embedded concrete marking is made of concrete that is different than the concrete into which the marking is embedded. A method of creating an embedded concrete marking comprises identifying a location on the surface of concrete where an embedded concrete marking is to be created, cutting a trench into the surface of the concrete at the identified location, po...