Patent 8393028 was granted and assigned to Nike, Inc. on March, 2013 by the United States Patent and Trademark Office.
A method of manufacturing footwear including the steps of positioning a sole member on a first portion of a cutting assembly; heating a second portion of the cutting assembly, the second portion including a cutting die; pressing the heated cutting die into the sole member to form a plurality of sipes in the sole member; and removing the cutting die from the sole member.