RB

Robert J. Bartkowicz

📍 Sayreville, NJ: #57 of 180 inventorsTop 35%
🗺 New Jersey: #29,833 of 69,400 inventorsTop 45%
Overall (All Time): #2,316,103 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5035428 Rotating grip for a baseball bat — 1991-07-30
5011145 Baseball bat with rotary grip — 1991-04-30