FL

Franklin D. Lewandowski

DL Dearborn Chemical Company Limited: 2 patents #7 of 31Top 25%
📍 Grayslake, IL: #260 of 548 inventorsTop 50%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,356,397 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4428866 Composition for reducing fly ash resistivity Richard L. Every, Jerome F. Lech 1984-01-31
4352747 Method to lower fly-ash resistivity Richard L. Every, Jerome F. Lech 1982-10-05