FH

Frank A. Hollingshead

BI Baker International: 1 patents #41 of 111Top 40%
📍 Duncanville, TX: #77 of 131 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #3,953,144 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4749053 Drill bit having a thrust bearing heat sink — 1988-06-07