Abstract: A method of determining the launch angle of a putter by evaluating the roll performance of a golf ball after being struck by a golf putter during the execution a putting stroke. The golf ball is placed on a flat testing platform having a nap upper surface and a putting stroke is made by a golfer causing the golf ball to move forward along said platform. As the ball moves along the nap surface, the ball creates skid and roll marks on the nap surface. These marks are compared against a series of known marks to determine the precise launch angle of the putter face of the golf putter being used to execute the stroke.

Abstract: A putter type golf club head having a unique ball striking face configuration to eliminate the dimple effect of grooved putters formed with a series of grooves and intermediate land areas between the grooves extending in a longitudinal direction across the striking face. Each of the grooves is characterized by a plurality of repeating, non-linear wave forms located at the center of the striking face and extending outwardly therefrom.

Abstract: A method of determining the launch angle of a putter by evaluating the roll performance of a golf ball after being struck by a golf putter during the execution a putting stroke. The golf ball is placed on a flat testing platform having a nap upper surface and a putting stroke is made by a golfer causing the golf ball to move forward along said platform. As the ball moves along the nap surface, the ball creates skid and roll marks on the nap surface. These marks are compared against a series of known marks to determine the precise launch angle of the putter face of the golf putter being used to execute the stroke.

Abstract: A putter type golf club head having a unique ball striking face configuration to eliminate the dimple effect of grooved putters formed with a series of grooves and intermediate land areas between the grooves extending in a longitudinal direction across the striking face. Each of the grooves is characterized by a plurality of repeating, non-linear wave forms located at the center of the striking face and extending outwardly therefrom.

Abstract: A metal wood type golf club head including a club head body and means for attachment to a golf shaft, the club head body including a frontal ball striking face having a center of percussion thereon, a rear face, a heel, toe, and top crown, and a bottom sole having a forward section and at least one additional rear section. The forward section provides a friction surface and is defined by a bounce angle extending downwardly from said frontal ball striking face to prevent the leading edge of the club head from digging into the turf or ground during the execution of a golf shot. The rear section of the bottom sole is a reduced friction surface and is recessed upwardly into the club head.

Abstract: A putter type golf dub head including a dub head body, heel toe, top ridge, bottom sole, frontal ball striking and rear face, including at least one longitudinal weight member attached to and extending rearwardly from the rear face and being perpendicular to the ball striking face. The longitudinal weight member may be adjustable to adjust the overall weight of the putter head.

Abstract: A putter type golf club head having an alignment system for aligning the putter to a predetermined lie angle. An alignment line is located on an upper surface of a rear flange perpendicular to the frontal ball striking face. An opening in the top ridge allows the alignment line to be seen by the golfer when the predetermined lie angle is achieved.

Abstract: A golf club head having an elongated weight formed adjacent the leading edge and located in a heel to toe direction.