DR

David A. Rhoa

📍 Altoona, PA: #70 of 148 inventorsTop 50%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,718,015 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5639035 Sludge treatment unit Thad S. Maugle 1997-06-17