JG

Joseph Grenko

📍 Muscatine, IA: #76 of 197 inventorsTop 40%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,285,509 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5401040 Reversible roller skate truck and steering mechanism — 1995-03-28
4623159 Roller skate — 1986-11-18