Patent Assignment
Reel/Frame 057931/0272
Assignment of Assignor's Interest
Recorded: 2021-10-27
Pages: 6
Assignors
XIE, JUN
Executed: 2021-09-22
MA, HUIYUN
Executed: 2021-09-24
YANG, JIAN
Executed: 2021-10-14
YU, CHENGGANG
Executed: 2021-09-24
FU, YUKUN
Executed: 2021-09-24
YIN, QIANG
Executed: 2021-09-24
LI, KUI
Executed: 2021-09-17
JIANG, YUAN
Executed: 2021-09-28
YI, DEZHENG
Executed: 2021-09-17
LIU, YANYAN
Executed: 2021-10-14
ZHONG, HAIFENG
Executed: 2021-10-14
LIU, XIAODONG
Executed: 2021-10-14
Assignees
PETROCHINA COMPANY LIMITED
9 DONGZHIMEN NORTH STREET, DONGCHENG DISTRICT, BEIJING, CHINA
SICHUAN SHENGNUO OIL. AND GAS ENGINEERING TECHNOLOGY SERVICE CO., LTD
NO. 6, EAST SECTION 1, GUANGDONG ROAD, GUANGHAN CITY, DEYANG CITY, SICHUAN, 610000, CHINA
Covered Property
(1)
Downhole Throttling Device Based on Wireless Control