21
Tyler J McKinley, Marc D Miller, J Scott Carr, William Y Conwell: Digital watermarks and trading cards. Digimarc Corporation, William Y Conwell, Digimarc Corporation, May 11, 2004: US06735324 (98 worldwide citation)

Digital watermarks can be employed in conjunction with trading cards (e.g., baseball cards, fantasy game cards, etc.) to serve a variety of purposes. Among these are facilitating on-line collecting and game-play. Digital watermarks may also be used in distinguishing genuine cards from counterfeits.


22
David J Marinelli: Speed, spin rate, and curve measuring device using magnetic field sensors. Silicon Pie, James R Young, November 21, 2000: US06151563 (95 worldwide citation)

A device for measuring a movable object, such as a baseball, football, hockey puck, soccer ball, tennis ball, bowling ball, or a golf ball. Part of the device, called the object unit, is embedded, secured, or attached to the movable object of interest, and has a spin detection circuit, electronic pr ...


23
Lionel P Lopez: Glove apparatus. Lion s Sports, Alton W Payne, September 8, 1987: US04691387 (94 worldwide citation)

An athletic glove apparatus for providing a non-slip grip and for providing padding and protection to the hand and the various areas of impact for use in different sports. A baseball glove apparatus comprises a glove and a bat wrap, the glove comprising a palm truss, a thumb truss a lower finger tru ...


24
Ray Tapia: Cap assembly. James E Brunton, December 10, 1991: US05070545 (91 worldwide citation)

An adjustable baseball type cap assemblage having a crown portion and various interchangeable visor portions. Insignia patches of various styles can be removably affixed to the selected visor and crown portions so that one cap assembly can be modified to identify with two or more athletic teams.


25
Glenn R Bernard: Stadium game for fans. John R Ross, John R Ross III, September 25, 2001: US06293868 (91 worldwide citation)

A game which is played by fans of sports events such as baseball, football, basketball and soccer. Each player makes advance predictions as regarding the outcome they expect to occur during the event. The player records his predictions in a form that can be checked by a computer. The record of the p ...


26
Yoshi Sekiguchi, Risa S Vuillemot, Chika Sekiguchi, Juri Sekiguchi: Process and display with moveable images. Yoshi Sekiguchi, Thomas W Tolpin, February 27, 1996: US05494445 (89 worldwide citation)

An efficient economical process is provided to produce an intricate impressive display with outstanding marketing and advertising appeal. In the process, multiple images are formed, such as on a central processing unit, the images are masked and striped, and portions thereof are superimposed. The su ...


27
Noel C Perkins: Electronic measurement of the motion of a moving body of sports equipment. The Regents of the University of Michigan, Young Basile Hanlon MacFarlane & Helmholdt P C, June 26, 2007: US07234351 (87 worldwide citation)

An application of rate gyros and accelerometers allows electronic measurement of the motion of a rigid or semi-rigid body, such as a body associated with sporting equipment including a fly rod during casting, a baseball bat, a tennis racquet or a golf club during swinging. For instance, data can be ...


28
Dwain Dial, Hong T Lin Jr, Michael Yang, Ding Li Huang, Teng C Lu: Baseball having inherent speed-measuring capabilities. Monogram Models, Milton S Gerstein, Marvin N Benn, October 4, 1988: US04775948 (82 worldwide citation)

A baseball with a self-contained speed-measuring module positioned within a hollowed-out portion of the solid core of the ball, with the upper portion of the module being a display unit that indicates the speed at which the baseball was thrown over a fixed distance, the read-out of the display unit ...


29
Kirk A Reinbold, Robert J Goldman: Capacitative sensor. Preventive Medical Technologies, Duane Morris & Heckscher, March 7, 2000: US06033370 (80 worldwide citation)

A capacitive force sensor which has a plurality of layers forming a force sensing detector, the detector providing a signal in response to pressure, feedback output in response to the signal from the force sensing detector and a housing for encompassing the force sensing detector and the feedback pr ...


30
Herbert Wiener, Michael Steven Budlow, Robert D Alessio: Methods and apparatus for playing baseball gambling games. June 23, 1998: US05769714 (78 worldwide citation)

The present invention discloses casino baseball gambling games played on electronic video gaming devices including a microprocessor, computer memory chips, programming software or firmware, a video display, control input buttons, and a coin acceptor. In a first embodiment of the invention, multiple ...



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