DH

Donald Hopwood

📍 Crystal, MN: #4 of 18 inventorsTop 25%
🗺 Minnesota: #1,405 of 4,663 inventorsTop 35%
Overall (2004): #232,271 of 270,089Top 90%
1
Patents 2004

Issued Patents 2004

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