RK

Richard G. Keffert

AA Aluminum Company Of America: 1 patents #495 of 1,017Top 50%
📍 Penn Hills, PA: #51 of 88 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,789,452 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5281819 Apparatus for nondestructively determining coating thickness on a metal object and associated method M. Jonell Kerkhoff, James E. Smous 1994-01-25