DD

David Douglas

EA E.I. Du Pont De Nemours And: 1 patents #146 of 589Top 25%
📍 Glen Mills, PA: #5 of 18 inventorsTop 30%
🗺 Pennsylvania: #1,500 of 5,512 inventorsTop 30%
Overall (2002): #236,000 of 266,432Top 90%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6405996 Control valve for extreme temperatures and pressures Albert W. Alsop, Earl W. Blackwell, John M. Iwasyk 2002-06-18