FT

Frederick N. Trofimenkoff

WE Weatherford/Lamb: 1 patents #31 of 108Top 30%
📍 Calgary, CA: #38 of 242 inventorsTop 20%
Overall (2002): #219,036 of 266,432Top 85%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6405795 Subsurface signal transmitting apparatus Marvin L. Holbert, James W. Haslett, Robert E. Smallwood 2002-06-18