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Golf-club head

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Publication number
US1780625A
US1780625A US70712124A US1780625A US 1780625 A US1780625 A US 1780625A US 70712124 A US70712124 A US 70712124A US 1780625 A US1780625 A US 1780625A
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Grant
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Prior art keywords
club
body
head
golf
magnesium
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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George W Mattern
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Crawford Mcgregor & Canby Co
CRAWFORD MCGREGOR AND CANBY Co
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Crawford Mcgregor & Canby Co
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B53/0466Heads wood-type
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B2053/0416Heads with an impact surface provided by a face insert
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B2053/0433Heads with special sole configurations
    • A63B2053/0437Heads with special sole configurations with special crown configurations

Description

' G. w. 'MA TERNf Nov. 4,' 1930.

' GOLF CLUB H'EAD v Filed April 1 1924 Patented Nov. '4, 1930 V UNITED, STAT-ES A Nr mic GEORGE W. MATTERN, OF DAYTON, OHIO, ASSIGNOB, TO'THE CRAWFORD, MCGREGOR AND OANBY COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO GOLF-CLUB HEAD Application mean rn 17,

.brassie and spoon type. Such golf clubs are a usually provided with wooden heads, which are quite susceptible to climatic and temperature variations. The preferred material is persimmon wood, although cheaper grades of clubs are made with heads of maple, beech and other woods. Such club heads, even when of best variety of wood have a tendency to swell and shrink, to weather check and to split and are frequently broken in'play.

l Vhile various other materials such as phenolic condensation materials, hard rubber, composition, fiber and aluminum have been suggested and tried as a material for golf club heads, these materialshave not generally been successful and have not. attained any considerable use, because deficient in some one or more of the requisite characteristics;

I The ordinary and commonly known metals are entirely too heavy to form 'a clubv head of the driveror spoon shape. It has been discovered, however, that the metal magnesium,

or magnesium alloys containingmagnesiumin a large proportion afi'ords a suitable ma terial from which clubfheads maybe made, within the established range of .weights of such clubs and. which possess the. requisite tensile strength and'elasticity. Such magnesium heads are n'otmaterially heavier than the wooden club heads ordinarily employed and are not subject to the unfavorable conditions and deterioration of the wooden heads. vMagnesium or magnesium alloy is found to be'close grained materiah having a Specific gravity approximating thatof wood,

and which seeminglypossesses peculiar char- 1 p the magnesium Preferably, l y

with aluminum in the approximateproporgreater'distance. A golf club issubjected r to a variable and wide range of forces when in play, the reaction to'which cannot be, easilyor readily foretold. The inherent qualities of the magnesium golf club heads,or one composed'in the main of magnesium is such" that a the reaction of the ball when struck by such head is not'only equal to, but is thought to exceed that of a wooden golf club head. Atfthe 1924. Serial is. 707,121.

sametime such head avoids the objectionable features of the wooden head.

In adapting. magnesium to golf club manufacture,certain established requirements of conventionality of contour, weight and balance must be maintained. It is the practice to balance or weight a wooden club head by embedding in'the rear side-thereof a body of lead or other material of high specific gravity. Such added weight is compensated for by the higher specific gravity of the magnesium club head. In the case of light weight clubs, the balancing of a metallic head of the driver or spoon type is achieved conversely by seating in the rear of the head a body of characteristically lighter material, or one of less specific gravity. Insuch case, the metallic head ispreferably rabbeted on its rear side, affording a rearwardly extending base flange, or ledge, coincident with the sole of the club, upon which a body of other materialsuch as wood, ivory, celluloid, fiber, composition or other material of suitable characteristics and specific gravity maybe fixedly seated. The weight and balance of the club is achieved by varyingthe proportions of such auxiliarybody of characteristically difi'erent material, the main body of the club, however, with 'itsintegral hosel and integral rear sium alloy is to be preferred. Aluminum whichhas been sometimes'suggested for such purposepossessesa spec fic gravity of 2.50,

whereas the specific gravity of magnesium is approximately 1.75. Forthe present pur= tionof ninety-four per cent magnesium to sixper cent of aluminum. To this compound may be added, a small quantity of antimony, bismuthor cadmium. Such alloypossesses a specific gravity of, approximately-1.7 8 and a hardness of 70 Brinell. The relative propor- 'tions and added ingredients are mentioned for illustrative, purposes only, and'are. not

intended as limitations, a j

The object of the invention is to afford a but which will possess an inherent characteristic making it possible to achieve greater distance, and affording improved reaction'of the ball when struck. a

A further object of the invention is to provide olf club heads of material having specilic gravity somewhat greater than that of wood, thereby compensating for the usual added weight body of the ordinary wooden golf club head, and in the case of light clubs, providing in combination with the metallic head, in lieu of the usual weight or balance body, a body of less specific gravity, to comply with the conventional contour, size and weight requirement.

With the above primary and; other incidental objects in view as will more fully appear in the specification, the invention consists of the features of construction, the parts and combinations thereof, and the mode of operation or their equivalents, as hereinafter described and set forth in the claims.

Referring to the accompanying drawin gs, wherein is shown the preferred, but obvious ly not necessarily the only form of embodiment of the invention, Figs. 1, 2 and 3 are respectively, perspective views of a golf club head, of the driver or spoon type, embodying the present invention, shown in different positions. Fig. 4 is a transverse sectional view.

Like parts are indicated by similar characters of reference throughout the several views.

Referring to the accompanying drawings, 1

is a golf club head, and 2 the handle shaft.

The head 1 is formed from metal preferably magnesium or an alloy of which magnesium forms the principal and dominating portion. lVhile it has been discovered that magnesium andmagnesium alloys possess peculiar qualifications and characteristics, adapting them to the present purpose, it is to beunderstood that in View of the fact that other alloys may becompounded or other metals of low specific gravity, substituted, the present invention is not intended to belimited specifically to a single material. V v

lVhile some players may desire a comparatively heavy golf club, or one having more weight-than that desired by other players, to meet such conditions, th'e entire golf club head 1, may be formed from magnesium, or a magnesium alloy, without any insert or embedded portion of different characteristics. To modify the weight of the club head, while retaining its traditional shape and proportion and to afford the desired balance of the metallic head, the present head is recessed at its rear side and an insert or complementary body 4 of characteristically different material such as celluloid,wood, fiber, ivory or the like is fixedly attached to the main body 3. A particularly acceptable material for this pur pose is the casein product galalith. This is somewhat analogous to loading or weighting a wooden head with a body of lead or other ballast. In preparing the main body 3 of the head to receive such complementary insert or addition 4, the head is rabbeted as its rear side leaving at the'base or sole of the club a rearwardly extending flange or ledge 5. The sole of the club is thus continuous from the front to the rear and integral with the main body, which carries the hosel or neck, to which the handle shaft is connected. The insert is seated in the rabbet formed by the rearwardly extending flange or ledge 5, and

is secured by cementing or by means of screws, studs or other attachment. To further insure a firm and secure seat for the complementary body 4, and to afford a slight differentiation of weight or balance, either the complementary insert 4, or the main body of the club head 3 may be provided with a triangular or grooved depression in the face of the seating rabbet and the opposing mem be is correspondinglyformed to agree with such. recess. In Fig. 3 the complementary member 4 is shown recessed with a prismatic face formed upon the main body 3 of the club head, and agreeing with such grooved depressioni In Fig. 4 this relation is reversed,

and \f shaped groove or depressionfis formed in the main club head member 3, while the complementary body .43 is shown provided with the prismatic or convex face agreeing with such recess. .Tdvary the weight and balance of the club over an extended range, the relative proportion of the complementary insert- 4 and the main body 8, of the head may bevaried by making one or the other member proportionately smaller, and the opposing member proportionately larger, as indicated by dotted lines 6 in Fig. 4h The extended flange or led 'e- 5*forms a sole plate beneath the complementary body l, integral with the main body 30f the club head. It is' obvious that inslieu. of this construction, aseparate sole plate might be employed, overlapping and attached to the respective bodies 3 and 41. However, the preferred.- construction is the integral, rearward'projecting ledge or flange 5; as before described. While the striking face of. the club may comprise a continuous metallic surface of the main body 1, such body if desired may have formed therein a mortise in whi'ch'is embedded a body of non-metallic material-as is'customaryin golf club manw facture. Such inset body 7 may be of wood, fiber, ivory or the like, the preferable material, however, being a casein product known commercially as galalith.

Magnesium possesses the necessary combination of physical properties not possessed by any of the other metals heretofore tried, which specially adapts it for golf club heads. It combines in a workable alloy the necessary weight, strength and hardness for the purpose, a combination of qualities better. than wood Without the objectionable characteristics of wood. By the composite construction described, the traditional contour of the club head may be retained with a degree of lightness and balance to suit the whims and desires of individual players. Such material possesses characteristics of combined rigidity and elasticity in such degree withother inherent unforeseen qualities, which experiment and experience have shown render it ideally responsive to the strains and stresses of golf play, and afford unexpected accuracy and distance in the flight of the driven ball.

From the above description it will be apparent that there is thus provided a device of the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrange- I ment of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is c not limited to the specific details shown, but

1. In a golf club of the driver, brassie or spoon type, a non-hollow metallic body including an integral neck or hosel, said body being continuous from the striking face of the club head to a line rearwardly of the hosel, an angular recess formed in the rear portion of said metallic body and a body of non-metallic material fitted in said recess forming the back of the club and top and side surfaces conforming to and forming continuationsof those surfaces of the. metallic body.

2. In a golf club vof the driver, brassie or spoon type, a golf club head including a hosel comprising a body of continuous metal from its strikingface to-a line to the rear of the hosel and having in ,the striking face a mortise, a non-metallic insert seated in said mortise, the rear portion of said metallic body being rabbeted to form an angular offset the bottom of which forms an integral extension plate continuous with the sole of prising a metallic body having a socket opening through its driving face, closed at its rear end to form an abutment wall,an impact body within said socket, seating against the abutment wall, a hosel portion integral with the body of the club head, the headbeing rabbeted rearwardly of said hosel portion and abutment wall to afford an integral rearwardly extending sole portion and a nonmetallic weighting and balancing body located in said rabbet and contoured in agreement with said metallic body to conform to the conventional shape of a golf driver or the like.

- In testimony whereof, I have hereunto set my hand this7th day of April, A. D. 1924.

' GEORGE W. MATTERN.

US1780625A 1924-04-17 1924-04-17 Golf-club head Expired - Lifetime US1780625A (en)

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Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985363A (en) * 1973-08-13 1976-10-12 Acushnet Company Golf club wood
US4023802A (en) * 1974-10-02 1977-05-17 Acushnet Company Golf club wood
US4699383A (en) * 1985-03-28 1987-10-13 Maruman Golf Co., Ltd. Club-head
US5676606A (en) * 1995-09-08 1997-10-14 The Founders Club Golf Company Golf putter
USD425158S (en) 1999-01-28 2000-05-16 Cobra Golf Incorporated Golf club head
US6332848B1 (en) 1999-01-28 2001-12-25 Cobra Golf Incorporated Metal wood golf club head
US20020094884A1 (en) * 1999-11-01 2002-07-18 Alan Hocknell Multiple material golf head
US6565452B2 (en) 1999-11-01 2003-05-20 Callaway Golf Company Multiple material golf club head with face insert
US6575845B2 (en) 1999-11-01 2003-06-10 Callaway Golf Company Multiple material golf club head
US6582323B2 (en) 1999-11-01 2003-06-24 Callaway Golf Company Multiple material golf club head
US6602149B1 (en) 2002-03-25 2003-08-05 Callaway Golf Company Bonded joint design for a golf club head
US20030153401A1 (en) * 1999-11-01 2003-08-14 Callaway Golf Company Golf Club Head with Customizable Center of Gravity
US20030171160A1 (en) * 1999-11-01 2003-09-11 Callaway Golf Company Multiple material golf club head
US6648773B1 (en) 2002-07-12 2003-11-18 Callaway Golf Company Golf club head with metal striking plate insert
US6663504B2 (en) 1999-11-01 2003-12-16 Callaway Golf Company Multiple material golf club head
US6672975B1 (en) 2003-02-06 2004-01-06 Callaway Golf Company Golf club head
US20040014534A1 (en) * 1999-11-01 2004-01-22 Callaway Golf Company Multiple Material Golf Club Head
US20040058743A1 (en) * 2002-09-25 2004-03-25 Callaway Golf Company Multiple material golf putter head
US6719643B1 (en) 2003-02-12 2004-04-13 Callaway Golf Company Golf club head with a face insert
US20040092333A1 (en) * 2002-11-12 2004-05-13 Callaway Golf Company Golf club head with a face insert
US20040097301A1 (en) * 2002-05-01 2004-05-20 Callaway Golf Company [Golf Club Head]
US20040097299A1 (en) * 2002-11-18 2004-05-20 Callaway Golf Company Golf club head
US20040171040A1 (en) * 2002-11-22 2004-09-02 Veeraiah Bodepudi Detectable labeled nucleoside analogs and methods of use thereof
US20040192467A1 (en) * 2003-03-31 2004-09-30 Callaway Golf Company Golf Club Head
US20040248667A1 (en) * 2003-05-27 2004-12-09 Callaway Golf Company [GOLF CLUB HEAD (Corporate Docket PU2150)]
US20040248665A1 (en) * 2003-06-04 2004-12-09 Callaway Golf Company [GOLF CLUB HEAD(Corporate Docket Number PU2149)]
US20050003903A1 (en) * 1999-11-01 2005-01-06 Callaway Golf Company Multiple material golf club head
US20050059508A1 (en) * 2003-09-15 2005-03-17 Burnett Michael Scott Multi-component golf club head
US20050064955A1 (en) * 1999-11-01 2005-03-24 Callaway Golf Company Multiple material golf club head
US20050176522A1 (en) * 2004-02-05 2005-08-11 Callaway Golf Company Multiple material golf club head
US20050266933A1 (en) * 2004-06-01 2005-12-01 Callaway Golf Company Golf club head with gasket
US20050278931A1 (en) * 2004-06-22 2005-12-22 Callaway Golf Company Method for processing a golf club head with cup shaped face component
US20050288124A1 (en) * 2004-06-25 2005-12-29 Callaway Golf Company Golf club head
US20060019770A1 (en) * 2003-09-15 2006-01-26 Meyer Jeffrey W Golf club head with progressive face stiffness
US20060058114A1 (en) * 2004-09-10 2006-03-16 Callaway Golf Company Multiple Material Golf Club Head
US20060079346A1 (en) * 2004-10-08 2006-04-13 Callaway Golf Company Multiple Material Golf Club Head
US20060116218A1 (en) * 2003-09-15 2006-06-01 Burnett Michael S Golf club head
US20060148586A1 (en) * 2005-01-03 2006-07-06 Callaway Golf Company Golf Club Head
US20060148587A1 (en) * 2005-01-03 2006-07-06 Callaway Golf Company Golf Club Head
US20060211514A1 (en) * 2005-03-18 2006-09-21 Callaway Golf Company A Golf Club Head with a Face Insert
US20060217215A1 (en) * 2004-09-10 2006-09-28 Erickson Matthew J Multiple Material Golf Club Head
US20060229141A1 (en) * 2005-04-08 2006-10-12 Galloway J A High performance low cost driver using multiple material face design
US20060293120A1 (en) * 2005-01-03 2006-12-28 Cackett Matthew T Golf Club with High Moment of Inertia
US7163468B2 (en) 2005-01-03 2007-01-16 Callaway Golf Company Golf club head
US20070099722A1 (en) * 2005-01-03 2007-05-03 Stevens Daniel M Golf Club Head
US20070293351A1 (en) * 1999-11-01 2007-12-20 Callaway Golf Company Multiple material golf club head
US20080020857A1 (en) * 2005-01-03 2008-01-24 Callaway Golf Company Golf club with high moment of inertia
US20080051219A1 (en) * 2005-03-18 2008-02-28 Callaway Golf Company Multiple material golf club head
US20090075748A1 (en) * 2007-09-13 2009-03-19 Callaway Golf Company Golf club with removable components
US20090088272A1 (en) * 2005-01-03 2009-04-02 Callaway Golf Company Golf club head
US20090143162A1 (en) * 2005-01-03 2009-06-04 Callaway Golf Company Golf club with high moment of inertia
US20090163293A1 (en) * 2005-01-03 2009-06-25 Callaway Golf Company Golf club head
US20090163294A1 (en) * 2007-12-19 2009-06-25 Callaway Golf Company Driver with deep aft cavity
US20090293259A1 (en) * 2008-06-02 2009-12-03 Callaway Golf Company Method for constructing a multiple piece golf club head
US20100000071A1 (en) * 2008-07-02 2010-01-07 Callaway Golf Company Method for constructing a multiple piece golf club head
US20100041494A1 (en) * 2008-08-15 2010-02-18 Nike, Inc. Golf club head and system
US20100041490A1 (en) * 2008-08-15 2010-02-18 Nike, Inc. Golf club head and system
US20100144463A1 (en) * 2008-12-04 2010-06-10 Callaway Golf Company Multiple material driver-type golf club head
US20100139078A1 (en) * 2008-12-04 2010-06-10 Callaway Golf Company Method for forming a multiple material fairway-type golf club head
US20100139079A1 (en) * 2008-12-04 2010-06-10 Callaway Golf Company Method for forming a multiple material golf club head
US20110039636A1 (en) * 2009-08-17 2011-02-17 Callaway Golf Company Selectively lightened wood-type golf club head
US20110065528A1 (en) * 2009-09-15 2011-03-17 Callaway Golf Company Multiple material golf club head and a method for forming a golf club head
US20110143858A1 (en) * 2009-12-16 2011-06-16 Callaway Golf Company External weight for golf club head

Cited By (166)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985363A (en) * 1973-08-13 1976-10-12 Acushnet Company Golf club wood
US4023802A (en) * 1974-10-02 1977-05-17 Acushnet Company Golf club wood
US4699383A (en) * 1985-03-28 1987-10-13 Maruman Golf Co., Ltd. Club-head
US5676606A (en) * 1995-09-08 1997-10-14 The Founders Club Golf Company Golf putter
USD425158S (en) 1999-01-28 2000-05-16 Cobra Golf Incorporated Golf club head
US6332848B1 (en) 1999-01-28 2001-12-25 Cobra Golf Incorporated Metal wood golf club head
US20050064955A1 (en) * 1999-11-01 2005-03-24 Callaway Golf Company Multiple material golf club head
US6471604B2 (en) 1999-11-01 2002-10-29 Callaway Golf Company Multiple material golf head
US6491592B2 (en) 1999-11-01 2002-12-10 Callaway Golf Company Multiple material golf club head
US6565452B2 (en) 1999-11-01 2003-05-20 Callaway Golf Company Multiple material golf club head with face insert
US6575845B2 (en) 1999-11-01 2003-06-10 Callaway Golf Company Multiple material golf club head
US6582323B2 (en) 1999-11-01 2003-06-24 Callaway Golf Company Multiple material golf club head
US20050059507A1 (en) * 1999-11-01 2005-03-17 Callaway Golf Company Multiple material golf club head
US20030153401A1 (en) * 1999-11-01 2003-08-14 Callaway Golf Company Golf Club Head with Customizable Center of Gravity
US20030171160A1 (en) * 1999-11-01 2003-09-11 Callaway Golf Company Multiple material golf club head
US20030176238A1 (en) * 1999-11-01 2003-09-18 Callaway Golf Company [MULTIPLE MATERIAL GOLF CLUB HEAD(Corporate Docket Number PU2159)]
US7144333B2 (en) 1999-11-01 2006-12-05 Callaway Golf Company Multiple material golf club head
US6663504B2 (en) 1999-11-01 2003-12-16 Callaway Golf Company Multiple material golf club head
US7128661B2 (en) 1999-11-01 2006-10-31 Callaway Golf Company Multiple material golf club head
US7125344B2 (en) 1999-11-01 2006-10-24 Callaway Golf Company Multiple material golf club head
US20020094884A1 (en) * 1999-11-01 2002-07-18 Alan Hocknell Multiple material golf head
US20040014534A1 (en) * 1999-11-01 2004-01-22 Callaway Golf Company Multiple Material Golf Club Head
US20070293351A1 (en) * 1999-11-01 2007-12-20 Callaway Golf Company Multiple material golf club head
US20080032819A1 (en) * 1999-11-01 2008-02-07 Galloway J A Multiple Material Golf Club Head
US7118493B2 (en) 1999-11-01 2006-10-10 Callaway Golf Company Multiple material golf club head
US20080064525A1 (en) * 1999-11-01 2008-03-13 Callaway Golf Company Multiple material golf club head
US20080113828A1 (en) * 1999-11-01 2008-05-15 Galloway J A Multiple Material Golf Club Head
US6739982B2 (en) 1999-11-01 2004-05-25 Callaway Golf Company Multiple material golf club head
US6739983B2 (en) 1999-11-01 2004-05-25 Callaway Golf Company Golf club head with customizable center of gravity
US7255654B2 (en) 1999-11-01 2007-08-14 Callaway Golf Company Multiple material golf club head
US6758763B2 (en) 1999-11-01 2004-07-06 Callaway Golf Company Multiple material golf club head
US7402112B2 (en) 1999-11-01 2008-07-22 Callaway Golf Company Multiple material golf club head
US7491134B2 (en) 1999-11-01 2009-02-17 Callaway Golf Company Multiple material golf club head
US20040224789A1 (en) * 1999-11-01 2004-11-11 Callaway Golf Company Multiple material golf club head
US20040229713A1 (en) * 1999-11-01 2004-11-18 Callaway Golf Company Golf club head with customizable center of gravity
US7497787B2 (en) 1999-11-01 2009-03-03 Callaway Golf Club Multiple material golf club head
US7556567B2 (en) 1999-11-01 2009-07-07 Callaway Golf Company Multiple material golf club head
US20040259664A1 (en) * 1999-11-01 2004-12-23 Callaway Golf Company Multiple material golf club head
US20050003903A1 (en) * 1999-11-01 2005-01-06 Callaway Golf Company Multiple material golf club head
US6994637B2 (en) 1999-11-01 2006-02-07 Callaway Golf Company Multiple material golf club head
US6926619B2 (en) 1999-11-01 2005-08-09 Callaway Golf Company Golf club head with customizable center of gravity
US6881159B2 (en) 1999-11-01 2005-04-19 Callaway Golf Company Multiple material golf club head
US7252600B2 (en) 1999-11-01 2007-08-07 Callaway Golf Company Multiple material golf club head
US6602149B1 (en) 2002-03-25 2003-08-05 Callaway Golf Company Bonded joint design for a golf club head
US6860823B2 (en) 2002-05-01 2005-03-01 Callaway Golf Company Golf club head
US20040097301A1 (en) * 2002-05-01 2004-05-20 Callaway Golf Company [Golf Club Head]
US6669578B1 (en) 2002-07-12 2003-12-30 Callaway Golf Company Golf club head with metal striking plate insert
US20040009828A1 (en) * 2002-07-12 2004-01-15 Callaway Golf Company Golf club head with metal striking plate insert
US6648773B1 (en) 2002-07-12 2003-11-18 Callaway Golf Company Golf club head with metal striking plate insert
US20040058743A1 (en) * 2002-09-25 2004-03-25 Callaway Golf Company Multiple material golf putter head
US6902497B2 (en) 2002-11-12 2005-06-07 Callaway Golf Company Golf club head with a face insert
US20040092333A1 (en) * 2002-11-12 2004-05-13 Callaway Golf Company Golf club head with a face insert
US20040097299A1 (en) * 2002-11-18 2004-05-20 Callaway Golf Company Golf club head
US6743118B1 (en) 2002-11-18 2004-06-01 Callaway Golf Company Golf club head
US20040171040A1 (en) * 2002-11-22 2004-09-02 Veeraiah Bodepudi Detectable labeled nucleoside analogs and methods of use thereof
US6672975B1 (en) 2003-02-06 2004-01-06 Callaway Golf Company Golf club head
US6719643B1 (en) 2003-02-12 2004-04-13 Callaway Golf Company Golf club head with a face insert
US6994636B2 (en) * 2003-03-31 2006-02-07 Callaway Golf Company Golf club head
US20040192467A1 (en) * 2003-03-31 2004-09-30 Callaway Golf Company Golf Club Head
US20040248667A1 (en) * 2003-05-27 2004-12-09 Callaway Golf Company [GOLF CLUB HEAD (Corporate Docket PU2150)]
US7097573B2 (en) 2003-06-04 2006-08-29 Callaway Golf Company Golf club head
US20040248665A1 (en) * 2003-06-04 2004-12-09 Callaway Golf Company [GOLF CLUB HEAD(Corporate Docket Number PU2149)]
US20050170906A1 (en) * 2003-06-04 2005-08-04 Erickson Joel B. Golf club head
US6875129B2 (en) 2003-06-04 2005-04-05 Callaway Golf Company Golf club head
US7651412B2 (en) 2003-09-15 2010-01-26 Acushnet Company Golf club head with progressive face stiffness
US20100151963A1 (en) * 2003-09-15 2010-06-17 Acushnet Company Golf club head with progressive face stiffness
US20060019770A1 (en) * 2003-09-15 2006-01-26 Meyer Jeffrey W Golf club head with progressive face stiffness
US8353787B2 (en) 2003-09-15 2013-01-15 Acushnet Company Golf club head with progressive face stiffness
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