DG

David M. Groffman

ND National Research Development: 3 patents #81 of 1,071Top 8%
Overall (All Time): #1,672,048 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4880628 Sustained release composition William Maxwell Allen, Jr., Bernard F. Sansom, Alan D. Wilson, Havard J. Prosser 1989-11-14
4758612 Cement-forming compositions Alan D. Wilson, Havard J. Prosser, Gary S. Sayers 1988-07-19
4661339 Sustained release composition William Maxwell Allen, Jr., Bernard F. Sansom, Alan D. Wilson, Havard J. Prosser 1987-04-28