RH

Richard P. Hefner

📍 Madison, WI: #2,790 of 4,527 inventorsTop 65%
🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #3,713,285 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5617693 Prefabricated wall trusses for super-insulated walls — 1997-04-08