RE

Robert W. Engstrom

📍 Gillette, WY: #15 of 101 inventorsTop 15%
🗺 Wyoming: #524 of 1,797 inventorsTop 30%
Overall (All Time): #2,102,210 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7882907 Earth boring bit 2011-02-08
5735360 Mining bit 1998-04-07