DD

David T. Doughty

CC Calgon Carbon: 1 patents #5 of 14Top 40%
📍 Dorpsstraat, PA: #5 of 30 inventorsTop 20%
🗺 Pennsylvania: #989 of 4,367 inventorsTop 25%
Overall (1997): #164,012 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5700436 Purification of air in enclosed spaces Richard A. Hayden, John W. Cobes, III, Thomas M. Matviya 1997-12-23