CH

Charles D. Hollar

IN Ingersoll-Rand: 2 patents #246 of 828Top 30%
📍 Roanoke, VA: #234 of 603 inventorsTop 40%
🗺 Virginia: #12,642 of 34,511 inventorsTop 40%
Overall (All Time): #2,259,688 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5743345 Drill bit for reverse drilling Stuart A. Connell 1998-04-28
D382887 Back drilling threaded bit Stuart A. Connell 1997-08-26