Patent ID: 8083613

Claim:
A golf ball comprising a surface having a plurality of dimples formed thereon, wherein the number of dimples is at least 250 and not more than 400, the dimples have a surface coverage (SR) of at least 70% and a volume ratio (VR) of at least 1.1%, are of at least three types and have an average depth of at least about 0.18 mm and a diameter to depth ratio (DM/DP) of not more than about 22, the (total number of Db)/(total number of Da) ratio, where Da represents dimples having a diameter of at least 3.7 mm and Db represents dimples having a diameter of less than 3.7 mm, is at least about 0.005 and not more than about 1, and the ball has a coefficient of lift CL at a Reynolds number of 70,000 and a spin rate of 2,000 rpm which is maintained at 60% or more of the coefficient of lift CL at a Reynolds number of 80,000 and a spin rate of 2,000 rpm, wherein a depth DP of a dimple is measured by connecting positions where the dimple meets land areas to trace a hypothetical flat plane L and determining a vertical distance from a center position on the flat plane L to a bottom of the dimple.