WM

William C. McDonald

GI Gas Research Institute: 1 patents #343 of 808Top 45%
📍 Houston, TX: #12,319 of 21,073 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #3,909,583 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4949795 Rotary rapid excavation system Gerard T. Pittard, John H. Cohen 1990-08-21