DT

Donald R. Tourangeau

📍 Portland, OR: #3,756 of 9,213 inventorsTop 45%
🗺 Oregon: #10,188 of 28,073 inventorsTop 40%
Overall (All Time): #1,634,637 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5930457 Heat cell for a roof — 1999-07-27
5391858 Ice dam melting system Joseph Csizmazia 1995-02-21
5052604 Golf cart attachment — 1991-10-01