ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,341, issued on Nov. 3, was assigned to All-Clad Metalcrafters LLC (Canonsburg, Pa.).
"Cookware having a graphite core" was invented by William A. Groll (McMurray, Pa.) and Jean Murray Stewart (Moon Township, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is cookware made from a bonded multi-layer blank assembly. The cookware has a first metal layer, a second metal layer having a cavity with a plurality of spaced-apart posts protruding from a bottom surface of the cavity, and a perforated graphite layer having a thickness of at least 0.010 in. (0.254 mm) and a plurality of spaced-apart holes formed therethrough. The perforated graphite la...