Inventor

VAN GELDERN STEVE

US3 patents

Patents

3 patents

US6546924B2Apr 15, 2003

Ball throwing machine and method for profiling pitches

PROBATTER SPORTS LLC49 citations94

US6513512B2Feb 4, 2003

Pitching system with video display means

PROBATTER SPORTS LLC25 citations91

US6182649B1Feb 6, 2001

Ball-throwing machine

PROBATTER SPORTS LLC32 citations90