AO

Arthur W. Opsahl

EA E.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
📍 Wilmington, DE: #1,519 of 3,182 inventorsTop 50%
🗺 Delaware: #3,234 of 7,163 inventorsTop 50%
Overall (All Time): #2,332,143 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4851463 Ethylene copolymer compositions having improved fire retardancy Lewis D. Watson 1989-07-25
4650126 Process for ambient temperature grinding of soft polymers Fred R. Feder, Kenneth N. Yarbrough 1987-03-17