A golf club head is described having a club head portion, a shaft portion connected to the club head portion, and a grip portion connected to the shaft portion. The club head portion has a heel portion, a sole portion, a toe portion, a crown portion, a hosel portion, and a striking face. The striking face has a center face roll contour, a toe side roll contour, a heel side roll contour, a center face bulge contour, a crown side bulge contour, and a sole side bulge contour. The toe side roll contour is more lofted than the center face roll contour. The heel side roll contour is less lofted than the center face roll contour. The crown side bulge contour is more open than the center face bulge contour, and the sole side bulge contour is more closed than the center face bulge contour.

A stand-alone putter structured and weight balanced enabling the putter to stand upright in a favorable lie and loft position on a putting surface without any outside support formed of a club head, a shaft connected to the club head, and having a gripping area at the upper end of the shaft. The club head is conventional in design and includes a ball striking face, a rear surface, a heel, a toe, an upper surface and a bottom sole structured to serve as a first ground support surface for the putter in a conventional use position with the bottom sole lying on a putting surface. The club head further includes at least one additional ground engaging support member extending outwardly from the club head forming a second ground support member to maintain the putter in a stand-alone position on the putting surface.

Embodiments of golf club heads and methods to manufacture such a golf club heads are generally described herein. In some embodiments, the golf club head may include a ball-striking face and a protective aluminum oxide layer coupled to the ball-striking face of the golf club head. The protective aluminum oxide layer is associated with a hardness that is greater than that of the ball-striking face. In further embodiments, golf club heads may include a top portion and at least one of a plurality of interchangeable alignment indicia coupled thereto, which are configured to guide the golf club head relative to a golf ball.

A golf club 2 includes a shaft 6 having a weight of 50 g or less. The shaft 6 has a ratio of a center of gravity of 0.54 or greater. Respective EI values measured at intervals of 100 mm from a point 130 mm distant from a tip end Tp are defined as E1 to E10. A first region, a second region, and a third region are defined by boundaries at respective points having distances of 230 mm and 830 mm from the tip end Tp. In a graph on which the EI values are plotted, gradients of approximate straight lines in the first region, the second region, and the third region are defined as M1, M2, and M3, respectively. M1 to M3, E9/E6, and E10/E6 are fall within respective specified scopes. M3 is greater than M2.

A golf club 2 includes a shaft 6 having a weight of 50 g or less. The shaft 6 has a ratio of a center of gravity of 0.54 or greater. Respective EI values measured at intervals of 100 mm from a point 130 mm distant from a tip end Tp are defined as E1 to E10. A first region, a second region, and a third region are defined by boundaries at respective points having distances of 230 mm and 830 mm from the tip end Tp. In a graph on which the EI values are plotted, gradients of approximate straight lines in the first region, the second region, and the third region are defined as M1, M2, and M3, respectively. M1 to M3, E9/E6, and E10/E6 are fall within respective specified scopes. M3 is greater than M2.

A golf club fitting apparatus and a method for fitting using the apparatus are provided. The golf club fitting apparatus may be attached to a golf club and provide fitting information including effective lie angle and effective loft angle. The golf club fitting apparatus includes a lower surface that contacts a butt end of a grip, an upper surface opposite the lower surface, and a side surface connecting the upper and lower surfaces. An angle indicator is disposed at a predetermined angle relative to a shaft axis of the golf club so as to rest in a neutral position when the golf club is in a normal address position.

The invention is a golf club Putter Head that allows an entire Putter Assembly (Head, Shaft, and Grip) to balance on the top of a standard golf ball, on the toe of the putter head, and on the heel of the putter head when placed on level ground. The Putter Head's ability to make a Putter Assembly balance on a golf ball, toe, and heel is driven by the precise location of the center of gravity and the specific geometry of the sole of the Putter Head.

The ability for the Putter Head to allow a putter assembly to balance on the toe, heel, and on top of a golf ball is a visual demonstration of the center of gravity and balance of the putter assembly. The center of gravity and balance of the putter assembly is a common factor used by consumers for determining putter selection.

Note: The benefits of the Putter Head are realized when the Putter Head is combined with a standard golf club putter shaft, and standard golf putter grip. The Putter Shaft and Putter Grip are not part of this patent submission.

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 may include a body portion having an interior cavity and a front portion, and a face portion attached to the front portion of the body portion to enclose the interior cavity. The face portion may include a face pocket portion having an opening defining a face cavity, and a face plate portion covering the opening to close the face cavity. The golf club head also includes a first filler material at least partially filling the interior cavity, and a second filler material at least partially filling the face cavity. The first filler material and the second filler material may be separated by one or more walls of the face pocket portion. 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 having a front portion, a rear portion, a toe portion, a heel portion, a top portion, and a bottom portion. The front portion may include a front pocket having a horizontal interior wall. A face portion may be positioned in the front pocket and against the horizontal interior wall. The horizontal interior wall may reinforce the front portion and support the face portion during impact with a golf ball. Other examples and embodiments may be described and claimed.

Described herein is a method for fine-tuning a putter and manufacture thereof. More specifically, an application (App) that is utilised for static and dynamic data point analysis along with algorithms to best determine how attributes of a putter need to be set up to maximise consistency of a user's putter stroke and roll of the ball. A customised putter is tailored and manufactured for each individual based on the output data of the App and a fitting system of the putter is multi-adjustable therein.