Patent Assignment
Reel/Frame 049131/0405
Assignment of Assignor's Interest
Recorded: 2019-05-09
Pages: 8
Assignors
LIU, FUCHEN
Executed: 2019-02-11
YANG, ZHENZHOU
Executed: 2019-02-11
LIU, YU
Executed: 2019-02-11
WANG, HANXIAO
Executed: 2019-02-11
Assignee
BEIJING HUAMEI INC. CNPC
CAOQIAN ROAD, ROOM 2367, BUILDING B, BUILDING 3, SCIENCE PARK, CHANGPING DISTRICT, BEIJING, 102200, CHINA
Covered Property
(1)
Method for Making Nano- and Micro-Particles for Use as a Proppant and Fluid-Loss-Control Additive
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.