DF

David Louis Frantz

EA E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
📍 Hockessin, DE: #387 of 555 inventorsTop 70%
🗺 Delaware: #4,431 of 7,163 inventorsTop 65%
Overall (All Time): #3,656,582 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5935379 Heat-sealing wheels for forming a longitudinal weld or seal in seams of plastic films Walter E. Lewis, Robert Vincent Jeral, Frederick H. Fiesser 1999-08-10