Patent Assignment
Reel/Frame 053153/0245
Assignment of Assignor's Interest
Recorded: 2020-07-08
Pages: 17
Assignors
YUAN, MIN M.
Executed: 2018-02-28
YELDELL, STEPHEN A.
Executed: 2018-03-01
HELMS, LONNIE C.
Executed: 2018-02-28
ACOSTA, FRANK
Executed: 2018-02-28
ARDOIN, KEVIN W.
Executed: 2019-03-27
Assignee
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E., HOUSTON, TEXAS, 77032-3219
Covered Property
(1)
Downhole Check Valve Assembly with a Ratchet Mechanism