SL

Stephen C. Libby

AA Aluminum Company Of America: 4 patents #149 of 1,017Top 15%
📍 Pittsburgh, PA: #1,996 of 7,570 inventorsTop 30%
🗺 Pennsylvania: #19,182 of 74,527 inventorsTop 30%
Overall (All Time): #1,300,903 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4897294 Insulating material containing delaminated vermiculite G. Edward Graddy, Jr. 1990-01-30
4830881 Method of making a container Aaron J. Becker, G. Edward Graddy, Jr., Gerald E. Carkin, Jan H. L. van Linden 1989-05-16
4773470 Casting aluminum alloys with a mold header comprising delaminated vermiculite G. Edward Graddy, Jr. 1988-09-27
4451443 Causticization method 1984-05-29