WS

William E. Schaefer

EA E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
📍 Hagerstown, MD: #113 of 223 inventorsTop 55%
🗺 Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #4,073,978 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4343663 Resin-bonded water-bearing explosive Cyril J. Breza, deceased 1982-08-10