Patent ID: 7819761

Claim:
A golf ball comprising: A. a golf ball core including: i. a center point having a first hardness value, and ii. an outer surface having a second hardness value, different from the first hardness value, iii. wherein a gradient in hardness value between the first hardness value and the second hardness value across a radius of the golf ball core occurs in discrete increments, iv. and wherein regions of the golf ball core having discrete hardness values are arranged concentrically about the center point; and v. the center point has a first specific gravity value, vi. the outer surface has a second specific gravity value, different from the first specific gravity value, vii. wherein a gradient in the specific gravity value between the first specific gravity value and the second specific gravity value, across a radius of the golf ball core, occurs in discrete increments, viii. regions of the golf ball core having discrete specific gravity values are arranged concentrically about the center point; and ix. wherein a discrete specific gravity value for a region of the golf ball core is determined based on the equation Y=0.03*X+B, wherein: a. Y is the specific gravity value of the region of the golf ball core, and 1<Y<1.3; b. X is a distance of the region from the center point of the golf ball core, 1 inch<X<1.62 inches, and the value of X can vary in value plus or minus 0.02 inch; and c. 0.95<B<1.27; and B. one or more layers enclosing the golf ball core.