Patent Assignment
Reel/Frame 055084/0290
Assignment of Assignor's Interest
Recorded: 2021-01-29
Pages: 6
Assignors
HELMS, LONNIE CARL
Executed: 2021-01-20
CAO, JINHUA
Executed: 2021-01-20
SANTOSO, HANDOKO TIRTO
Executed: 2021-01-20
Assignee
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E., HOUSTON, TEXAS, 77032-3219
Covered Property
(1)
Reverse Cementing Tool
Patent:
11,274,519 →
Application:
17/138,336 →