GOLF CLUB HEADS AND METHODS TO MANUFACTURE GOLF CLUB HEADS

Abstract: embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein3in one example, a golf club head includes a body portion having a back portion with a back wall portion3the back wall portion includes groove portions extending from a center portion toward a perimeter portion. each groove portion includes a groove portion depth, a groove portion width, and a groove portion length. the groove portion depth extends into the back wall portion from an inner surface of the back wall portion. the groove portion depth or the groove portion width of at least one groove portion may vary along the groove portion length. the golf club head also includes a filler material in the hollow body portion coupled to the groove portions. other examples and embodiments may be described and claimed.

Inventor(s): Michael R. Nicolette, Bradley D. Schweigert, Daniel C. Kirtley

CPC Classification: A63B53/0475 ({with one or more enclosed cavities})

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