ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,527,653, issued on Jan. 20.
"Ridged dental floss" was invented by Cheemang Her (Woodbury, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ridged dental floss that includes a flexible dental floss string of a polymeric material that includes multiple sections of ridges, wherein a first section includes a tightly spaced series of spherical ridges each of an elastic polymeric material and directly coupled to opposing sides of the dental floss string to define a diameter and a second section adjacent to the first section includes a tightly spaced series of spherical ridges each of an elastic polymeric material and directly coupled to opposing sides o...