US 12,440,064 B1
Multi-ply cookware with carbon steel cooking surface layer
William Vatis, Alexandria, VA (US); and Katie Kearns, Alexandria, VA (US)
Assigned to Gizmatic LLC, Oxon Hill, MD (US)
Filed by Gizmatic LLC, Oxon Hill, MD (US)
Filed on Apr. 24, 2025, as Appl. No. 19/188,067.
Application 19/188,067 is a continuation of application No. 18/894,057, filed on Sep. 24, 2024.
Int. Cl. A47J 37/10 (2006.01); A47J 27/00 (2006.01); A47J 36/02 (2006.01); B32B 15/01 (2006.01)
CPC A47J 37/10 (2013.01) [A47J 27/002 (2013.01); A47J 36/02 (2013.01); B32B 15/012 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A multi-ply cookware, comprising:
a body comprising:
a cooking surface layer formed from nitrided carbon steel, wherein the cooking surface layer forms an interior surface of the body;
a thermal layer disposed below the cooking surface layer and formed from aluminum; and
a protective layer disposed below the thermal layer and forming an exterior surface of the body opposite the interior surface; and
a handle connected to the body,
wherein the cooking surface layer, the thermal layer, and the protective layer are roll bonded together.