William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7905795 | Unitary broadhead with laser welded ferrule A chisel-type broadhead comprises a threaded ferrule laser welded to multiple blades. The blades are welded from both sides. The blades are welded to each other and to the ferrule. The ferrule and blades are configured to provide maximum impact strength to the broad... | 03/15/2011 |
| 7393285 | Putter with alignment means A putter head having a forward-facing striking surface, a heel, a toe, a top surface and a rearward-facing, elongated tail section. The elongated tail section has vertical side walls, into each of which is machined an elliptical track or groove along the inside surf... | 07/01/2008 |
| 7341526 | Golf putter having alignment aid for aligning a golfer's head in at least four axes A golf putter having an alignment aid for aligning the player's head relative to the ball and the putter head. In addition to providing alignment along the usual X and Y axes, the alignment aid of the invention allows precise and repeatable head positioning in the f... | 03/11/2008 |
| 7331877 | Golf club head A maximum resilience point (M) of a head (1) is positioned above a center (C) of a hitting surface. On the maximum resilience point (M), (t2−t1) measured in accordance with a pendulum test determined by USGA has a maximum value. When coordinat... | 02/19/2008 |
| 7255650 | Golf club head with alignment guide A golf club head has a cavity for receiving an alignment guide or insert having parallel grooves separated by parallel ridges. The club head includes a face member with a front surface arranged for impacting a golf ball. The insert is oriented such that the parallel... | 08/14/2007 |
| 7226362 | Golf club head including alignment device A golf club head includes a transparent cylinder with a sight on top and target on the bottom for indicating to the golfer when the club head is level and on line. An exemplary sight includes a centered disk surrounded by concentric rings; some rings being transpare... | 06/05/2007 |
| 7220187 | Apparatus and method for computing and outputting golf ball putting instructions Apparatus and a method for computing and outputting a putting backstroke instruction for a planned putt of a golf ball during recreational play. A computing means includes means for initializing or customizing according to a specific golfer putting on a specific gol... | 05/22/2007 |
| 7182697 | Hole-aligning putter A Hole-aligning Putter is disclosed. The putter defines a center alignment mark on the face and top surface of the club head. The putter further displays second and third alignment marks straddling the first (center) alignment mark in spaced relation at a distance o... | 02/27/2007 |
| 7175537 | Golf putter with lift angle A putter has a center of gravity located rearward from the face and under the stroking pivot point. The polar moment of inertia of the putter is increased by moving the distribution of weight toward the rear of the head away from the contact surface. The sole of the... | 02/13/2007 |
| 7083526 | Golf putter A golf putter (10) includes a putter head (316) having a putter body (320), a heel weight (344H), a toe weight (344T) and a first sole insert (354F). The putter body (320) includes a heel region (330) and a toe... | 08/01/2006 |
| 7083525 | Golf club head with insert A golf club head comprising an integral toe, heel and center section, with the center section including a cavity. The center section is structured so that the majority of the weight of the golf club head is positioned at the toe and heel. One embodiment of the golf ... | 08/01/2006 |
| 7077757 | Curvilinear golf club-head path assisting indicator and method The present invention provides a novel visual golf club-head curvilinear path indicator and method of use. Specifically, the present invention provides a visual golf club-head curvilinear path guide in the form of one or more alignment lines or markings on putters a... | 07/18/2006 |
| 7052409 | Planar-parallactic golf alignment aide A Planar-Parallactic Golf Alignment Aide is disclosed. Also disclosed is a device that provides the golfer with a planar alignment sight line for aligning the club face with the target. The invention further provides the golfer with a parallactic alignment sight lin... | 05/30/2006 |
| 7029404 | Golf putter and putter head An improved golf putter comprising a shaft, a generally resilient tubular or cylinder shaped main body member and a pair of unitary solid weight members each one being releasably attachable to one end of the main body member. The main body member includes end walls ... | 04/18/2006 |
| 7014566 | Golf putter A hard rubber plate forms a striking surface that covers most of a front face of a body of a club head of a putter. The thickness of the plate prevents an uncovered edge of the front face from striking a golf ball. The front face has an arcuate shape that indicates ... | 03/21/2006 |
| 6450894 | Golf putter head with weighted toe and heel portions A golf putter head has a central portion made of a relatively light weight material such as a light alloy of extruded aluminum or extruded plastic alloy. To further reduce the weight of the central portion, this portion may be extruded and the face plate ... | 09/17/2002 |
| 6224494 | Golf club with multiple sweet spot markings and methods and tools for locating same An improved golf club with markings visible on the club head face indicating the ideal points of contact with a golf ball regardless of whether the golf ball is lying on the ground, on a golf tee or otherwise, together with markings visible on club head t... | 05/01/2001 |
| 6062986 | Putter club The habits of the golfer can be determined during the address from the coincidence status between a reference line 4 and a center line 8 or the plus or minus graduation (judgement) lines 9 or 10 by providing the reference line 4 on the upper face 2 of hea... | 05/16/2000 |
| 5967902 | Golf putter and method A golf putter and method is disclosed which allow accurate sighting and positioning of the golf putter head relative to the target or hole, and which has perpendicular elongated teeth that run along the bottom face of the putter head thereby increasing fr... | 10/19/1999 |
| 5961398 | Golf club head apparatus A golf club head apparatus includes a ball-striker face portion and a main body portion underlying the ball-striker face portion. The ball-striker face portion is in a form of an automobile rear view mirror. The main body portion includes a top body surfa... | 10/05/1999 |
| 5810675 | Golf putting stroke training device A putting stroke training device is removably attached to a putter in a simple one step action. A body of the training device is attached to a conventional putter and includes a C-shaped, resilient attachment member that deforms to fit over the top-line o... | 09/22/1998 |
| 5769734 | Golf swing training device A golf swing training device for attachment to a golf club. A bell-shaped weight having an axial bore and a slot that communicates with the bore is slidably mountable to the shaft of a golf club. The weight is attached to and suspended from an elastic, ex... | 06/23/1998 |
| 5728007 | Guidance apparatus A playing club for impelling a projectile over a playing surface toward a target, the playing club comprising a shaft adapted to be gripped by a person using the club; a head mounted on the shaft and having a lower surface adapted to be positioned in cont... | 03/17/1998 |
| 5709612 | Golf putting device A golf putter provides an optical means for aiming the putter face including a rotatable mirror mounted on the top of the putter so as to image an indicia line on the mirror surface as well as an indicia line on the top of the putter. When these two lines... | 01/20/1998 |
| 5707296 | Training putter with laser line alignment system A putter including a club head, a shaft, a handle, a ball striking face, a heel, a toe, and an upper surface, with the shaft being connected to the upper surface, and a pair of light sources located in the ball striking face. One light source is located adjace... | 01/13/1998 |
| 5676603 | Golf club with tracking device A tracking device for a golf club, which requires no electrical power source, is comprised of a body of fiberoptic material which is affixed to an exterior surface of the golf club. The fiberoptic material gathers ambient light along its length, and direc... | 10/14/1997 |
| 5628694 | Training putter and rug A Training Putter and Rug consisting of tugging with two short lines drawn on the top surface of and near one end of the rugging parallel with the long central axis of symmetry of the rug and one center line co-extensive with the central axis equidistant ... | 05/13/1997 |
| 5558332 | Golf club head An improved golf club head wherein 70%-97% of the total head weight is within 3/4"-1" of the heel and toe ends of the head. The golf club head is provided with an echo chamber for improving audible feedback to the golfer. Upper and lower overhangs extendi... | 09/24/1996 |
| 5551924 | Putting training apparatus A training apparatus that indicates the alignment of a practice golf stroke includes a base plate and a club member. The base plate includes a body, a pointer, a guide strip, and a warning background. The club member attaches to a golf club, and includes ... | 09/03/1996 |
| 5423545 | Golf putter with improved sighting capabilities A new and improved golf putter with improved sighting capabilities comprising, a front striking face of a generally planar configuration positioned at rearwardly from the vertical and with a toe face and a heel face extending rearwardly from the front str... | 06/13/1995 |
| 5275412 | Golf putting club A golf ball putter having a golf club assembly which includes a vertical member having a planar ball-striking surface integrally united with a horizontal sole member at substantially a right angle, a heel and toe balancing weight mounted on the rearward s... | 01/04/1994 |
| 4913438 | Golf club A golf putter has a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe; and includes: (a) the head top surface having first, second and third regions respectively near the toe, mid-extent of the head and... | 04/03/1990 |
| 4872684 | Golf putter A golf putter has a substantially cylindrical club head made from a tough, resilient, non-metallic plastic material such as acetal polymer (e.g., Delrin or Celcon); has weight-receiving receptacles recessed in each of the heel and toe ends; and weight ins... | 10/10/1989 |
| 4527799 | Golf club head A putter is disclosed having a beveled portion (16, 16') on the face (13, 13') of its club head (10, 10') to leave a straight line of intersection (17, 17') that can be viewed for use as a reference even with the club head tilted forward while addressing ... | 07/09/1985 |
| 4390184 | Golf putter head and putter incorporating such head A golf putter head of substantially squared W-shape, when viewed from the top thereof, preferably with weights in the outer leg portions of such W, facilitates straighter and more accurate putting. When the walls of the middle leg of the W of the club hea... | 06/28/1983 |
| 4141556 | Golf putter The invention provides a golf putter having a head of generally triangular shape in plan view with a substantially vertical striking surface and a bottom surface curved to prevent scraping of the ground surface on either putting or transverse movement. Ma... | 02/27/1979 |
| 4032156 | Assisting orientation of a member as it moves in a linear path Means for assisting orientation of a member as it moves in a linear path, especially a golf club head having a flat striking face and substantially flat top and bottom faces, the top face having internal walls defining an aperture in the top face and open... | 06/28/1977 |