SD

Steven W. Derr

DC Dci: 1 patents #3 of 10Top 30%
Overall (All Time): #2,841,190 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10197490 Apparatus, method, and system for measuring relative permeability of immiscible fluids Christopher F. Johnson, Christopher S. Johnson, Andrew C. Johnson 2019-02-05