DR

Douglas P. Rauen

📍 Portland, OR: #6,022 of 9,213 inventorsTop 70%
🗺 Oregon: #17,068 of 28,073 inventorsTop 65%
Overall (All Time): #3,794,284 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5299693 Method and apparatus for extracting selected materials Richard A. Ubaldi, Garrett Smith, Mark W. Hrehovcik 1994-04-05