Abstract: A multiple material golf club head made of different metals that, when combined via additive manufacturing, transmit tensile or compressive force, shear force, bending moment, and torsional moment as if the different metal parts were a single piece of material is disclosed herein. In particular, the golf club head is a putter head with a body piece made of a first metal material that is in direct contact with a face piece made of a second metal material, and applied via additive manufacturing, such that load conditions are transmissible at a boundary between these two pieces. The second metal material forms at least a portion of the striking surface and a lower region of the hosel, and the interface between the two materials is contiguous from the face to the hosel.

Abstract: A multiple material golf club head made of different metals that, when combined via additive manufacturing, transmit tensile or compressive force, shear force, bending moment, and torsional moment as if the different metal parts were a single piece of material is disclosed herein. In particular, the golf club head is a putter head with a body piece made of a first metal material that is in direct contact with a face piece made of a second metal material, and applied via additive manufacturing, such that load conditions are transmissible at a boundary between these two pieces. The second metal material forms at least a portion of the striking surface and a lower region of the hosel, and the interface between the two materials is contiguous from the face to the hosel.

Abstract: A multiple material golf club head made of different metals that, when combined via additive manufacturing, transmit tensile or compressive force, shear force, bending moment, and torsional moment as if the different metal parts were a single piece of material is disclosed herein. In particular, the golf club head is a putter head with a body piece made of a first metal material that is in direct contact with a face piece made of a second metal material, and applied via additive manufacturing, such that load conditions are transmissible at a boundary between these two pieces. The second metal material forms at least a portion of the striking surface and a lower region of the hosel, and the interface between the two materials is contiguous from the face to the hosel.

Abstract: A putter head comprising a novel alignment structure is disclosed herein. In particular, the putter comprises an alignment sphere attached to an upper surface of a lower flange and an alignment ring suspended over the lower flange and vertically aligned with the alignment sphere. When a golfer has oriented the putter properly in front of a golf ball at address, the alignment sphere will appear to the golfer to be encircled by the alignment ring.

Abstract: A multiple-material golf club head with an improved scarf joint between the crown and the body, and a method of finishing said golf club head is disclosed herein. The golf club preferably has a metal body comprising a striking face, a sole, a return portion, a bond flange, and a rear flange, and a composite crown having a scarf region, a step portion, and a constant thickness region directly behind the scarf region. The golf club is manufactured by providing a club head with a bond flange, providing a composite crown with a scarf region delineated by a front edge and a step portion and/or groove, bonding the scarf region to the bond flange to form an upper golf club head surface, and grinding the upper golf club head surface only from a location proximate the front edge to a location proximate the step portion and/or groove.

Abstract: A putter head comprising a novel alignment structure is disclosed herein. In particular, the putter comprises an alignment sphere attached to an upper surface of a lower flange and an alignment ring suspended over the lower flange and vertically aligned with the alignment sphere. When a golfer has oriented the putter properly in front of a golf ball at address, the alignment sphere will appear to the golfer to be encircled by the alignment ring.

Abstract: A putter head comprising a novel alignment structure is disclosed herein. In particular, the putter comprises an alignment sphere attached to an upper surface of a lower flange and an alignment ring suspended over the lower flange and vertically aligned with the alignment sphere. When a golfer has oriented the putter properly in front of a golf ball at address, the alignment sphere will appear to the golfer to be encircled by the alignment ring.

Abstract: A golf club providing improved golf ball launch conditions is disclosed herein. The golf club includes a face component and a sole comprising an elongated recess disposed proximate the face component. The elongated recess preferably is tube shaped, and preferably has an opening with a smaller width than an innermost surface of the elongated recess. The elongated recess may be a separate piece that is permanently affixed within an opening in the sole. Some embodiments of the golf club also comprise a cover affixed to the sole and at least partially covering the opening of the elongated recess, while other embodiments comprise a filler material disposed within the elongated recess or between the elongated recess and an internal surface of the face.

Abstract: A golf club head having elevated internal weighting that improves ball speed, reduces backspin, and increases launch angle is disclosed herein. In particular, the golf club head comprises a hollow body with a face, sole, and elevated weight bar, which is disposed inside the body and is fixed to heel and toe sides of the body, preferably with mechanical fasteners such as screws or bolts. The weight bar bridges a central portion of the sole, and a central section of the weight bar, which preferably comprises at least 50% of the overall mass of the weight bar, extends towards the face without actually making contact with the face. The sole also includes at least one slot extending perpendicular to the face and underneath the central section of the weight bar, the slot having a front-to-back length that is greater than a maximum front-to-back length of the weight bar.

Abstract: A multiple-material golf club head with an improved scarf joint between the crown and the body, and a method of finishing said golf club head is disclosed herein. The golf club preferably has a metal body comprising a striking face, a sole, a return portion, a bond flange, and a rear flange, and a composite crown having a scarf region, a step portion, and a constant thickness region directly behind the scarf region. The golf club is manufactured by providing a club head with a bond flange, providing a composite crown with a scarf region delineated by a front edge and a step portion and/or groove, bonding the scarf region to the bond flange to form an upper golf club head surface, and grinding the upper golf club head surface only from a location proximate the front edge to a location proximate the step portion and/or groove.

Abstract: A putter head comprising a novel alignment structure is disclosed herein. In particular, the putter comprises an alignment sphere attached to an upper surface of a lower flange and an alignment ring suspended over the lower flange and vertically aligned with the alignment sphere. When a golfer has oriented the putter properly in front of a golf ball at address, the alignment sphere will appear to the golfer to be encircled by the alignment ring.

Abstract: A golf club head having elevated internal weighting that improves ball speed, reduces backspin, and increases launch angle is disclosed herein. In particular, the golf club head comprises a hollow body with a face, sole, and elevated weight bar, which is disposed inside the body and is fixed to heel and toe sides of the body, preferably with mechanical fasteners such as screws or bolts. The weight bar bridges a central portion of the sole, and a central section of the weight bar, which preferably comprises at least 50% of the overall mass of the weight bar, extends towards the face without actually making contact with the face. The sole also includes at least one slot extending perpendicular to the face and underneath the central section of the weight bar, the slot having a front-to-back length that is greater than a maximum front-to-back length of the weight bar.

Abstract: A golf club providing improved golf ball launch conditions is disclosed herein. The golf club includes a face component and a sole comprising an elongated recess disposed proximate the face component. The elongated recess preferably is tube shaped, and preferably has an opening with a smaller width than an innermost surface of the elongated recess. The elongated recess may be a separate piece that is permanently affixed within an opening in the sole. Some embodiments of the golf club also comprise a cover affixed to the sole and at least partially covering the opening of the elongated recess, while other embodiments comprise a filler material disposed within the elongated recess or between the elongated recess and an internal surface of the face.

Abstract: A putter head comprising a novel alignment structure is disclosed herein. In particular, the putter comprises an alignment sphere attached to an upper surface of a lower flange and an alignment ring suspended over the lower flange and vertically aligned with the alignment sphere. When a golfer has oriented the putter properly in front of a golf ball at address, the alignment sphere will appear to the golfer to be encircled by the alignment ring.

Abstract: The present invention relates to an iron-type golf club head having a lightweight hosel and a high, toe-ward located center of gravity. The golf club head preferably includes a hollow body with a hosel and an interior mold line that extends into the hosel and is separated from a shaft bore by a solid barrier that does not include any through-holes. An upper portion of the body may include a pocket to hold a high-density weight, and the hosel wall may include multiple through-bores to further lighten the hosel. The golf club head may also include one or more internal ribs extending from the hollow interior of the body into the interior of the hosel.