DH

Donald Hopwood

📍 Crystal, MN: #143 of 227 inventorsTop 65%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,495,505 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6818676 Foam cushion and method of making and using the same Adam J. Koffler, Binh Hoang 2004-11-16