RL

Richard E. Ludwig

EA E.I. Du Pont De Nemours And: 1 patents #61 of 304Top 25%
📍 Newtown Square, PA: #2 of 10 inventorsTop 20%
🗺 Pennsylvania: #570 of 2,652 inventorsTop 25%
Overall (1982): #36,348 of 81,411Top 45%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4310591 Security paper from film-fibril sheets Chi-Chang Lee 1982-01-12