Patent Assignment
Reel/Frame 057478/0121
Assignment of Assignor's Interest
Recorded: 2021-09-14
Pages: 7
Assignors
ZHAO, JIAJUN
Executed: 2021-09-03
JIN, JING
Executed: 2021-09-03
WANG, RUIJIA
Executed: 2021-09-03
CHANG, CHUNG
Executed: 2021-09-03
Assignee
HALLIBURTON ENERGY SERVICES, INC.
3000 N. SAM HOUSTON PARKWAY E., HOUSTON, TEXAS, 77032-3219
Covered Property
(1)
Acoustic Transducer with Piezoelectric Elements Having Different Polarities