RD

Ronald D. Drake

OM Oil Sands Underground Mining: 2 patents #1 of 3Top 35%
📍 Lake Arrowhead, CA: #1 of 2 inventorsTop 50%
🗺 California: #3,616 of 26,868 inventorsTop 15%
Overall (2005): #37,579 of 245,428Top 20%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6929330 Method and system for mining hydrocarbon-containing materials Michael Kobler, John D. Watson 2005-08-16
6869147 Method and system for mining hydrocarbon-containing materials Michael Kobler, John D. Watson 2005-03-22