ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,636, issued on March 24, was assigned to Whirlpool Corp. (Benton Harbor, Mich.).
"Sol-gel coated glass ceramic induction cooktop" was invented by Margherita Basso (Varese Lombardy, Italy), Ermanno Buzzi (Varese Lombardy, Italy) and Christine Nortey (Milan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cooking appliance with a cooktop includes a glass-ceramic substrate with a top surface for receiving cookware thereon for heating. The surface includes a coating formed by applying a sol-gel coating to the surface after the surface is roughened to increase the surface roughness of the top surface and improve adhesion of the coating thereon. The sol-...