DG

Donald R. Gradwohl

📍 Tualatin, OR: #156 of 324 inventorsTop 50%
🗺 Oregon: #12,654 of 28,073 inventorsTop 50%
Overall (All Time): #2,111,609 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8011876 Wind driven power generator Jonald R. Gradwohl 2011-09-06
4227709 Convertible hand truck-wagon Jonald R. Gradwohl 1980-10-14