AK

Ann T. Kotchevar

UM University of Minnesota: 2 patents #696 of 2,951Top 25%
📍 Minneapolis, MN: #2,566 of 6,114 inventorsTop 45%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,336,215 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4737309 Liquid membrane system for the removal of nitrate from water Maurice M. Kreevoy 1988-04-12
4661257 Liquid membrane system for the removal of nitrate from water Maurice M. Kreevoy 1987-04-28