Abstract: A golf club holder includes an elongate body having a first end and a second end. A ground engaging member is positioned at the first end, whereby the elongate body is supported in a ground surface in a substantially vertical orientation. A socket is provided for detachably securing a first end of at least one golf club spaced from the first end of the elongate body. A clamp is provided for detachably securing a second end of the at least one golf club spaced from the second end of the elongate body.

Abstract: A golf putter grip pattern is disclosed. The golf putter grip has a top end, a bottom end, a substantially flat front portion, a substantially curved rear portion, a first side, and a second side. The first and second sides are in between the front portion and the rear portion. The present invention may further include a pattern disposed on the golf putter grip that aids the golfer in perfecting the golf putter swing.

Abstract: A self-balancing golf putter. The self-balancing golf putter includes a club head. The club head includes a clubface configured to make contact with a golf ball. The self-balancing golf putter also includes a shaft attached to the club head. The shaft includes a center axis, wherein the center axis converges with a balance point configured to make the club face seek square when making contact with the golf ball.

Abstract: A club includes a head, a shaft, and a grip. A club length L1 is 43 inches or greater and 48 inches or less. A ratio (Wh/Wc) between a head weight Wh and a club weight Wc is equal to or greater than 0.70. An inertia moment Ix about swing axis is 6.90×103 (kg·cm2) or greater and 7.50×103 (kg·cm2) or less. A static moment Mt (kg·cm) of the club is equal to or greater than 16.3 (kg·cm). The frequency of vibration of club is 240 (cpm) or greater and 280 (cpm) or less. The inertia moment Ix (kg·cm2) is calculated by Equation (1): Ix=Wc×(Lc+60)2+Ic??(1).

Abstract: A variable length shaft assembly comprising at least one spacer, a shaft portion, and a threaded fastener, wherein the threaded fastener removably connects the spacer to the lower shaft, is disclosed herein. The variable length shaft assembly may further comprise at least two spacers that are stackable on a butt end of the shaft portion so a golfer can adjust the total length of the shaft. Methods of adjusting the length of a golf club shaft without damaging any portion of the shaft and variable length shaft kits are also disclosed herein.

Abstract: A golf club comprises a shaft, a club head, and a connection assembly that allows the shaft to be easily disconnected from the club head. In particular embodiments, a sleeve including a top portion, a middle portion connected to the top portion is described. The middle portion includes a thin wall thickness. A bottom portion is connected to the middle portion including a plurality of engaging surfaces. A central longitudinal axis and an offset angle offset from the central longitudinal axis is described. The offset angle allows a maximum loft change of about 0.5 degrees to about 4.0 degrees. The total weight of the sleeve is less than 9 g.

Abstract: A golf club head comprising a plurality of center of gravity adjustment assemblies and a flat panel that attenuates sound and, in certain embodiments, connects the center of gravity adjustment assemblies, is disclosed herein.

Abstract: Embodiments of shaft plugs for golf clubs and methods to manufacture golf clubs with shaft plugs are generally described herein. Other embodiments of shaft plugs may be described and claimed.

Abstract: Systems, devices, and methods relating to optimizing a weight distribution of a golf club for a golfer's swing, comprising monitoring one or more dynamic behavioral characteristics of said golfer's swing, and altering said weight distribution of said golf club to optimize said golfer's swing by evaluating said one or more dynamic behavioral characteristics of said golfer's swing, selecting a weight member from a set of interchangeable weight members, and installing said weight member into said golf club.

Abstract: The club length of a golf club is 43 inches or greater and 48 inches or less. A club inertia moment Ix about a swing axis is equal to or less than 6.90×103 (kg·cm2). A ratio (Ihs/Ix) is equal to or greater than 0.88, if a head inertia moment about the swing axis is defined as Ihs (kg·cm2). The inertia moment Ix (kg·cm2) is calculated by Equation (1) below, and the inertia moment Ihs (kg·cm2) is calculated by Equation (2) below: Ix=Wc×(Lc+60)2+Ic??(1) Ihs=Wh×(Lh+60)2+Ih??(2).

Abstract: A golf club head is provided with a body that has an address position with a zero degree bounce portion on the sole and a center sole position with a multi-relief surface of the sole having a negative bounce portion. The negative bounce portion may comprise a negative 0.5 to a negative 4.0 degree surface. In one embodiment, the multi-relief surface may comprise the negative bounce portion and a cutaway portion extending to the back of the sole, which may have a depth of about 0.05 to 0.5 inch from a regular sole surface. In another embodiment, the golf club head includes a weight system to adjust the center of gravity. In one embodiment, the weight system is a tube having a weight at one end that may be inserted into the golf club head to move the center of gravity at least forward and backward within 6 mm and up and down within 6 mm. Preferably, the tube is angled downward toward the face by at least 3 degrees.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The face is configured to provide varying stiffness while minimizing the change in thickness across the face. The flexure provides compliance during an impact between the golf club head and a golf ball.

Abstract: Provided is a golf club shaft. When a distance from a front end of the shaft to a center of gravity of the shaft is LG and when a full length of the shaft is LS, 0.54?LG/LS?0.65 is satisfied. A shaft weight is not larger than 55 g, and a torque value is not higher than 6.5.

Abstract: A golf grip for a golf club includes a butt end, a tip end, a grip surface, and a gripping feature. The tip end includes a shaft opening. The grip surface extends between the butt end and the tip end. The grip surface is a tapered circular cylinder with an axis extending from the butt end to the tip end. The gripping feature includes a rake surface forming an acute angle with the grip surface. The rake surface extends into the grip at an acute angle relative to a plane perpendicular to the axis.

Abstract: A golf club shaft having a weight distribution such that the balance point percentage is less than or equal to 44.50%. The weight distribution of the shaft allows for an increase in length and/or club head weight of a golf club while having a reduced impact on the swing weight.

Abstract: Embodiments of a golf club set with progressive tapered face thickness coordinated with club loft are generally described herein. Other embodiments may be described and claimed.

Abstract: Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.

Abstract: A plurality of golf club heads wherein the difference in spin is minimized is disclosed herein. More specifically, the present invention discloses a plurality of fairway wood type golf club head with a volume of between about 110 cubic centimeters (cc) and about 250 cc, wherein the change in backspin between any two clubs within the plurality of metal wood type golf club heads is less than about 600 revolutions per minute (rpm). A plurality of golf clubs in accordance with the present invention may generally have all of its clubs maintain a center of gravity (CG) location that is less than about 8.0 mm away from a neutral axis of the golf club head regardless of the difference in loft of the specific golf club head within the plurality of golf club heads.

Abstract: A golf club head has a hollow and comprises a face portion having a club face for hitting a ball, a sole portion defining a bottom face of the club head, and a hosel into which a tip end of a golf club shaft is inserted. The hosel protrudes into the hollow. The sole portion is provided in its club face side with a thick ribbed part having a thickness of from 3.0 to 10.0 mm and extending in the toe-heel direction of the head. In the hollow, the ribbed part is connected to the hosel.

Abstract: A combined golf club cover and stand comprises a substantially rigid base and a cover portion configured to securely hold a head of a golf club against the substantially rigid base. The substantially rigid base includes a bottom platform, a first side wall, and an opposing second side wall with a bottom ledge that extends toward the first side wall, such that when the head of the golf club is held against the substantially rigid base, a toe end of the head is in contact with an interior surface of the first side wall, and a heel end of the head sits on the bottom ledge of the second side wall. The assembled golf club and combined golf club cover and stand is thus capable of standing upright, without any outside support, when the bottom platform is on a substantially flat underlying ground surface.