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John D Lipps, Stephen J Szczecinski, Robert W Baskette: Sensing spatial movement. Sports Sciences, John L Gray, April 21, 1998: US05741182 (136 worldwide citation)

Apparatus including a video baseball-simulating game and a special bat containing a combination of electronic, mechanical, and optical components for providing infrared radiation or other energy (typically electrical) that is modulated when the player swings the bat and thus actuates a centrifugal s ...


2
John D Lipps, Stephen J Szczecinski, Gregory J Svetina: Riding board game controller. John D Lipps, Thompson Hine & Flory, January 19, 1999: US05860861 (41 worldwide citation)

A riding board game controller for sending directional and non-directional control signals to an audio-visual game having a microprocessor-based host computer for sending audio-visual signals to a display device, the riding board game controller comprising: a substantially rectangular platform, pivo ...


3
John D Lipps: Golf practice apparatus. John L Gray, November 20, 1990: US04971325 (27 worldwide citation)

An apparatus for the practicing of golf swings utilizing a beam from the forehead of the user coordinated with the swing of an actual golf club in contact with a golf ball, or simulated golf club in contact with a simulated golf ball. In the case of the simulated unit which may be used indoors, deta ...


4
John D Lipps, Stephen J Szczecinski: Golf practice apparatus. Sports Sciences, John L Gray, November 11, 1997: US05685782 (19 worldwide citation)

An apparatus for the practicing of golf swings utilizing a motion sensor and a radiation source on the forehead of the user which projects a radiated signal when head motion is sensed. The signal is detected by a unit contemporaneously with the golfer's swinging either-a golf club, if he is outside, ...


5
John D Lipps: Portable exercise device. Donald R Bahr, May 12, 1998: US05749815 (13 worldwide citation)

This invention is concerned with a portable exercise device which can readily be broken down into its component parts for storage. Regardless of its portability the portable exercise device is capable of providing the user with a good workout. This portable exercise device has a two segment main bod ...


6
John D Lipps: Convertible mattress system. John L Gray, September 28, 1993: US05247714 (6 worldwide citation)

Applicant's invention comprises a mattress system which may be used as a conventional mattress or with minor modification may have a recess formed at one end thereof whereby an individual's arm may be comfortably placed in such recess with the individual's head resting on a pillow in the recess. By ...


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