CW

Charles W. Welch

EA E.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
📍 New Castle, DE: #53 of 179 inventorsTop 30%
🗺 Delaware: #2,574 of 7,163 inventorsTop 40%
Overall (All Time): #1,632,786 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5883968 System and methods for preventing fraud in retail environments, including the detection of empty and non-empty shopping carts J. Michael Rozmus, James L. Whiteman, Michael Negin, William J. Herd 1999-03-16
4496612 Aqueous flux for hot dip metalizing process James McNutt, Robert J. Scott 1985-01-29
4422908 Zinc plating 1983-12-27