Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a toe portion, a heel portion, a top portion, a sole portion, a back portion, and a front portion. The golf club head may include an interior cavity. Other examples and embodiments may be described and claimed.

Embodiments of golf clubs and methods to manufacture golf clubs are generally described herein. In one example, a golf club may include a golf club head having an interior cavity and a shaft attached to the golf club head. At least a portion of the shaft may be filled with an elastic polymer material, and the interior cavity may be at least partially filled with an elastic polymer material. Other examples and embodiments may be described and claimed.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a face portion, a toe portion, a top portion, a sole portion, and a back portion. The golf club head may include an interior cavity. Other examples and embodiments may be described and claimed.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a toe portion, a heel portion, a top portion, a sole portion, a back portion, and a front portion. The golf club head may include an interior cavity. Other examples and embodiments may be described and claimed.

The present invention is a method of forming the ball striking face of a putter type golf club to control the amount of force applied to a golf ball for a given stroke in order that golf ball struck away from the center of percussion of the face travels essentially the same distance as golf balls struck precisely at the center of percussion.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a method of manufacturing a golf club head may include forming a body portion having an interior cavity portion and a plurality of ports, forming a face portion, attaching the face portion to the body portion to close the interior cavity, injecting a polymer material into the interior cavity portion through a port in the body portion, and closing the ports with a plurality of mass portions. Other examples and embodiments may be described and claimed.

Embodiments of golf club heads having a hydrophobic surface and methods to manufacture such golf club heads are generally described herein. The golf club heads are configured to comprise a ball-striking face and at least two channels formed therein. The channels are separated by a land portion of the ball-striking face extending therebetween. The land portion is associated with at least a first step portion extending at a first elevation and a second step portion extending at a second elevation, the second elevation being higher than the first elevation relative to a bottom of the channels. Each of the first and second step portions is so dimensioned as to be associated with a substantially hydrophobic contact angle.

A golf club head having a milled planar strike face formed of oxidizable metal material and a plurality of primary grooves, and a first oxidation-prevention coating permanently covering at least a portion of the body. The primary grooves have toeward ends that may be unaligned vertically. A temporary user-removable cover may cover at least a portion of the oxidizable strike face surface area and obscure the view of at least a portion of the plurality of primary grooves, and may incorporate an opening to display a portion of the face and a portion of the plurality of primary grooves, a non-stick tab coupled to a periphery of the temporary user-removable cover, and/or an external layer of plastic-based shrink wrap. The temporary user-removable cover may be adhesively attached to the face to seal an underlying area from environmental exposure and inhibit oxidation.

Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head includes a body portion comprising a material having a first density and an interior cavity having a filler material therein comprising a material having a second density. The golf club head also includes a first mass portion coupled to the body portion and a second mass portion coupled to the hosel portion. The first mass portion and the second mass portion comprise a material having a third density. A port on the body portion is configured to receive the first mass portion. At least a portion of the first mass portion is below a horizontal midplane of the body portion. The first density is greater than the second density. The third density is greater than the first density. A distance between a portion of the first mass portion and the hosel portion is substantially greater than a distance between the portion of the first mass portion and the toe portion edge. The first mass portion and the second mass portion have at least one different physical property. Other examples and embodiments may be described and claimed.

Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. A golf club head includes a means for defining an interior cavity including a first material having a first density. The golf club head also includes a first means for increasing a moment of inertia of the means for defining the interior cavity, a second means for increasing a moment of inertia of the means for defining the interior cavity, and a third means for increasing a moment of inertia of the means for defining the interior cavity. The first, second, and third means include a second material having a second density greater than the first density. A portion of the first, second, and third means define visible portions of a back wall portion of the means for defining an interior cavity. Other examples and embodiments may be described and claimed.