DC

David M. Coffey

📍 Knoxville, TN: #1,155 of 2,927 inventorsTop 40%
🗺 Tennessee: #7,532 of 20,272 inventorsTop 40%
Overall (All Time): #2,322,225 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4906861 Superconducting current reversing switch Apurba Roy 1990-03-06
4763404 Low current superconducting magnet with quench damage protection Robert W. McGhee, David L. Coffey 1988-08-16