DR

Douglas A. Roe

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Tempe, AZ: #1,081 of 2,648 inventorsTop 45%
🗺 Arizona: #13,050 of 32,909 inventorsTop 40%
Overall (All Time): #2,341,361 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4702220 Atomizing valve apparatus for internal combustion engine — 1987-10-27
4648476 Motor vehicle Terance D. Harp 1987-03-10