Seattle, Washington
United States
3
2013-08-01
Kristopher A. Johnson from Seattle, US has applied for patents for these inventions. The list has both pending applications and granted patents:
SYSTEMS AND METHODS FOR CONTROLLING BASEBALL BAT SWING
#2 | 2013-07-04SYSTEMS AND METHODS FOR CONTROLLING BASEBALL BAT SWING
#3 | 2011-01-20Systems and methods for controlling baseball bat swing
325084 ⎘