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| Number | Title | Issue Date |
| 7955190 | Relative position between center of gravity and hit center in a golf club A golf club head is provided with a center of gravity positioned within a partial ellipsoid defined in an impact reference frame that has its origin at the hit center of the face of the golf club head. The majority of the partial ellipsoid is located toward the golf... | 06/07/2011 |
| 7846042 | Relative position between center of gravity and hit center in a golf club A golf club head is provided with a center of gravity positioned within a partial ellipsoid defined in an impact reference frame that has its origin at the hit center of the face of the golf club head. The majority of the partial ellipsoid is located toward the golf... | 12/07/2010 |
| 7581762 | Elastic hose clamp A hose clamp for joining flexible hose or tubing to an internal fitting, or to repair a break, or to join two lengths of such tubing, has a plurality of wraps of a stretched strand of material around the exterior with the end secured to the hose. The clamp is formed... | 09/01/2009 |
| 7559852 | Face markings for golf clubs Improved golf club heads indicating the location of an optimum hit point on the striking face for maximum shot distance of any hit location on the face (“maximum distance spot”, called MD) and an indication of a second optimum hit point giving best distance, wit... | 07/14/2009 |
| 7445563 | Vibration damping for hollow golf club heads An internal vibration damper for hollow golf club heads is disclosed. Of particular concern is vibration of the club sole and crown when the face of the club impacts a golf ball. At least one column extends from the sole to the crown, approximately perpendicular to ... | 11/04/2008 |
