RI

Robert Iversen

EC Eastman Christensen: 1 patents #3 of 15Top 20%
📍 Humble, TX: #2 of 18 inventorsTop 15%
🗺 Texas: #885 of 4,134 inventorsTop 25%
Overall (1989): #62,829 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4878548 Nozzle retention system for a drill bit Alfred Ostertag, Craig R. Hyland, Kenneth D. Enever, Steven R. Radford 1989-11-07