RC

Robert B. Coolidge

DI Dresser Industries: 1 patents #301 of 787Top 40%
📍 Spring, TX: #1,281 of 2,039 inventorsTop 65%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #3,874,179 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5007493 Drill bit having improved cutting element retention system David Nguyen 1991-04-16