Patent Assignment
Reel/Frame 019038/0665
Assignment of Assignor's Interest
Recorded: 2007-02-22
Pages: 3
Assignor
WELTON, THOMAS D.
Executed: 2007-02-19
Assignee
HALLIBURTON ENERGY SERVICES, INC.
10200 BELLAIRE BLVD., HOUSTON, TEXAS, 77072
Covered Property
(1)
Crosslinked Acids Comprising Derivatized Xanthan and Subterranean Acidizing Applications