DC

David N. Christensen

IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #3,889,507 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5063951 Fluid treatment device Steven L. Bard, John J. Glenning, James A. Nicoletti, Mark W. Urdanick 1991-11-12