RC

Ronald D. Coffman

📍 McHenry, IL: #211 of 350 inventorsTop 65%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,112,103 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4203572 Locking ball valve — 1980-05-20