DS

Donald H. Van Steenwyk

SI Scientific Drilling International: 2 patents #1 of 5Top 20%
📍 San Marino, CA: #6 of 24 inventorsTop 25%
🗺 California: #4,287 of 28,521 inventorsTop 20%
Overall (2003): #69,390 of 273,478Top 30%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6651496 Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment James N. Towle, Hans S. Fairchild 2003-11-25
6608565 Downward communication in a borehole through drill string rotary modulation Robert M. Baker, Gary A. McBroom 2003-08-19