RD

Ronald D. Drake

OM Oil Sands Underground Mining: 4 patents #2 of 3Top 70%
OS Osum Oil Sands: 2 patents #6 of 6Top 100%
📍 Lake Arrowhead, CA: #5 of 40 inventorsTop 15%
🗺 California: #93,399 of 386,348 inventorsTop 25%
Overall (All Time): #872,840 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7461901 Method and means for processing oil sands while excavating Michael Kobler, John D. Watson 2008-12-09
7448692 Method and means for processing oil sands while excavating Michael Kobler, John D. Watson 2008-11-11
7097255 Method and means for processing oil sands while excavating Michael Kobler, John D. Watson 2006-08-29
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
6554368 Method and system for mining hydrocarbon-containing materials Michael Kobler, John D. Watson 2003-04-29