Patent ID: 8753220

Claim:
A progressive set of iron-type golf club heads, comprising: a first iron-type golf club head, comprising a body defining a striking face, a top line, a sole, a back of the striking face, a heel, and a toe; wherein the back of the striking face of the first golf club head comprises a first elliptical pad, the first elliptical pad having a first major axis, first minor axis and first thickness; wherein the first elliptical pad has a first location and the first major axis, first minor axis and first location of the first elliptical pad correspond to a first location and first size of a predetermined golfer's impact pattern based on a loft and club length of the first golf club head; and a second iron-type golf club head, comprising a body defining a striking face, a top line, a sole, a back of the striking face, a heel, and a toe; wherein the back of the striking face of the second golf club head comprises a second elliptical pad, the second elliptical pad having a second major axis, second minor axis and second thickness; wherein the second elliptical pad has a second location and the second major axis, second minor axis and second location of the second elliptical pad correspond to a second location and second size of a predetermined golfer's impact pattern based on a loft and club length of the second golf club head, wherein the second elliptical pad is shaped more like a circle than the first elliptical pad, and wherein the progressive set of golf club heads includes a 5 iron and a 9 iron golf club head.