Patent Assignment
Reel/Frame 042664/0878
Assignment of Assignor's Interest
Recorded: 2017-06-09
Pages: 5
Assignors
VAN SLYKE, DONALD CURTIS
Executed: 2016-06-07
SHUMWAY, WILLIAM WALTER
Executed: 2016-06-15
Assignees
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E., HOUSTON, TEXAS, 77032-3219
CHEVRON U.S.A. INC.
6001 BOLLINGER CANYON ROAD, SAN RAMON, CALIFORNIA, 94583
Covered Property
(1)
Drilling Fluid for Downhole Electrocrushing Drilling