Patent Assignment
Reel/Frame 035203/0334
Assignment of Assignor's Interest
Recorded: 2015-02-27
Pages: 9
Assignors
GRAF, STEPHEN
Executed: 2015-02-18
WHITE, MATTHEW A.
Executed: 2015-02-09
SUH, ASONG E.
Executed: 2015-02-10
Assignee
SCIENTIFIC DRILLING INTERNATIONAL
1100 RANKIN ROAD, HOUSON, TEXAS, 77073
Covered Property
(1)
Sub-surface formation boundary detection using an electric-field borehole telemetry apparatus