DH

David L. Helmreich

University of Michigan: 1 patents #1,906 of 4,352Top 45%
📍 Ann Arbor, MI: #3,831 of 6,071 inventorsTop 65%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,870,447 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4994388 Collagen-coated polystyrene microcarrier beads William J. Hillegas, James Varani 1991-02-19