DH

Darrell D. Havir

TC Tsi Group Co.: 1 patents #73 of 151Top 50%
📍 Roseville, MN: #386 of 611 inventorsTop 65%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,846,527 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5098657 Apparatus for measuring impurity concentrations in a liquid David Blackford, Frederic R. Quant, Thomas A. Kerrick, Gilmore J. Sem 1992-03-24