Patent ID: 6984181

Claim:
A putter-type golf club head comprising: a body composed of cast stainless steel, the body having a front wall, a bottom wall, a ribbon wall and a ledge, the front wall having a thickness in the range of 0.010 inch to 0.250 inch, the ledge extending inward a distance ranging from 0.05 inch to 0.25 inch from an exterior surface of the body, and the front wall, the bottom wall and the ribbon wall defining an internal cavity, the body having a heel mass and a toe mass; and a crown portion composed of plies of pre-preg material over a bulk molding compound, the crown portion having a top wall, a side wall and a front wall, the crown portion attached to the ledge of the body, wherein the golf club head has a moment of inertia about an Izz axis of the golf club head that ranges from 2800 grams-centimeter squared to 5000 grams-centimeter squared.