John L. Beintema

📍 Bloomington, MN: #520 of 1,157 inventorsTop 45%

🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%

Overall (All Time): #2,263,914 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5803836	Hitting practice device	—	1998-09-08
5000450	Tethered ball batting practice device	—	1991-03-19