DS

Donald H. Van Steenwyk

SI Scientific Drilling International: 2 patents #1 of 3Top 35%
📍 San Marino, CA: #2 of 29 inventorsTop 7%
🗺 California: #3,906 of 28,370 inventorsTop 15%
Overall (2004): #66,781 of 270,089Top 25%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6816788 Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment James N. Towle, Hans S. Fairchild 2004-11-09
6698516 Method for magnetizing wellbore tubulars James N. Towle 2004-03-02