RE

Robert D. Ewing

HO Holophane: 1 patents #19 of 38Top 50%
Overall (All Time): #3,815,423 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D332503 Luminaire Peter A. Koloski, Robert J. Hayes, Richard J. Malecha, David G. Meredith 1993-01-12