1
Dave Marinelli: Speed, spin rate, and curve measuring device. Silicon Pie, James R Young, November 14, 2000: US06148271 (139 worldwide citation)

A device for measuring a movable object, such as a baseball, football, hockey puck, soccer ball, tennis 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 consists of an accelerometer network, electronic processo ...


2
David J Marinelli: Speed, spin rate, and curve measuring device using multiple sensor types. Silicon Pie, James R Young, December 5, 2000: US06157898 (119 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 consists of an accelerometer network, elect ...


3
David J Marinelli: Speed, spin rate, and curve measuring device using magnetic field sensors. Silicon Pie, James R Young, November 21, 2000: US06151563 (96 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 ...


4
Marinelli David J: A speed, spin rate, and curve measuring device. Silicon Pie, Marinelli David J, YOUNG James R, July 22, 1999: WO/1999/036137

A device for measuring a movable object, such as a baseball, football, hockey puck, soccer ball, tennis 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 consists of an accelerometer network, electronic processo ...



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