William J. Sewell

EA E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%

📍 Seaford, DE: #31 of 80 inventorsTop 40%

🗺 Delaware: #3,234 of 7,163 inventorsTop 50%

Overall (All Time): #2,271,862 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5650065	Skimmer cover for dry well in a catch basin	—	1997-07-22
4937034	Apparatus and method for cofeeding additives with polymer flake	—	1990-06-26