Patent Assignment
Reel/Frame 015331/0127
Assignment of Assignor's Interest
Recorded: 2004-11-04
Pages: 5
Assignor
SHEFFIELD, RANDOLPH J.
Executed: 2004-11-01
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE, SUGAR LAND, TEXAS, 77478
Covered Property
(1)
Plunger Lift Apparatus That Includes One or More Sensors