RG

Robert Griffith

NS National Steel: 2 patents #6 of 84Top 8%
📍 North Liberty, IN: #8 of 14 inventorsTop 60%
🗺 Indiana: #13,671 of 33,936 inventorsTop 45%
Overall (All Time): #2,306,179 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5078089 Oil spray coating booth Raymond Dugan, Daniel D. Evans, Ronald G. Mumaw 1992-01-07
5007318 Metal strip edge trimming apparatus Laurence C. Cox, Raymond Dugan, Daniel D. Evans, Terry L. Handley, Jeffrey J. Leeper 1991-04-16