05688186 is referenced by 100 patents and cites 23 patents.

A new golf club face design is disclosed in which different regions of grooves are provided in the vertical direction of the club face to impose different roll/bite characteristics on a golf ball depending on where the golf ball contacts the club face. In one embodiment, the golf club face has three characteristic regions of different types of grooves in the vertical direction of the club face. Different irons within the golf club set can also have different characteristic grooves in the three defined regions of the club face.

Title
Golf club face
Application Number
8/626680
Publication Number
5688186
Application Date
April 2, 1996
Publication Date
November 18, 1997
Inventor
John VonSchwartz
12951 Gladstone Rd., N. Jackson, 44451
OH, US
Richard A Michaels
1845 Twin Oaks Dr., Girard, 44420
OH, US
Agent
Nixon & Vanderhye P C
IPC
A63B 53/04
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