Patent Assignment
Reel/Frame 012718/0963
Assignment of Assignor's Interest
Recorded: 2002-03-19
Pages: 5
Assignors
ECHOLS, RALPH H.
Executed: 2002-03-12
FREEMAN, TOMMIE A.
Executed: 2002-03-13
GANO, JOHN C.
Executed: 2002-03-12
Assignee
HALLIBURTON ENERGY SERVICES, INC.
LEGAL, INTELLECTUAL PROPERTY DEPARTMENT, P.O. BOX 819052, DALLAS, TEXAS, 75381
Covered Property
(1)
System and Method for Creating a Fluid Seal Between Production Tubing and Well Casing