US Patent 7448964 Golf club head having a crown with thin regions

A golf club head includes a hollow body having a front wall, a crown and a sole. The crown has a thickness dimension measured between its inner and outer surfaces. An outer edge of the crown extends in a generally arcuate path between heel and toe ends of the hollow body. A plurality of thin regions in the crown is arranged in a matrix pattern. The plurality of thin regions includes a first row of thin regions disposed adjacent the outer edge of the crown and a second row of thin regions disposed inwardly of the first row of thin regions. The crown thickness dimension in the plurality of thin regions is reduced when compared with the crown thickness dimension in other regions of the crown.