DC

Derek A. Coffee

📍 Salem, OH: #40 of 112 inventorsTop 40%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,631,796 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6138744 Closed loop geothermal heat exchanger — 2000-10-31