ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,321, issued on Jan. 13, was assigned to The Procter & Gamble Co. (Cincinnati).

"Oral care compositions comprising fluoride" was invented by Arif Ali Baig (Mason, Ohio), Min Mao (Deerfield Township, Ohio), Gregory Charles Gordon (Loveland, Ohio), Melissa Cherie Payne (West Chester, Ohio), Holly Balasubramanian Rauckhorst (Ft. Thomas, Ky.), Paul Albert Sagel (Maineville, Ohio), Jeanette Marie Swartz (Loveland, Ohio), Paul Dennis Trokhan (Hamilton, Ohio), Brian Patrick Croll (Hamilton, Ohio), Dinah Achola Nyangiro (Mason, Ohio), Samuel James St. John (Cincinnati), Malgorzata Klukowska (Mason, Ohio), Michael Anthony Kaminski (Cincinnati), Nataliya Gurich (Cincinnati) and Jeremy Clay C...