IP Library › Assignment 049427/0461
Patent Assignment
Reel/Frame 049427/0461

Assignment of Assignor's Interest

Recorded: 2019-06-11 Pages: 11
Assignors
LIN, LIJUN
Executed: 2019-06-06
HUANG, JIANGSHUI
Executed: 2019-06-04
BAI, LITAO
Executed: 2019-05-29
YU, STEPHANIE
Executed: 2019-05-29
LIU, FUCHEN
Executed: 2019-05-29
YIN, CONGBIN
Executed: 2019-05-30
GONG, WEI
Executed: 2019-05-30
Assignee
CNPC USA CORPORATION
2901 WILCREST DRIVE, 6TH FLOOR, HOUSTON, TEXAS, 77042
Covered Property (1)
Compositions of Hydraulic Fracturing Fluid and Method Thereof
Application: 16/171,156 →
Publication: US 2020/0131433
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 5, 2023
From: CNPC USA CORPORATION
To: CNPC USA CORPORATION; BEIJING HUAMEI, INC.; CHINA NATIONAL PETROLEUM CORPORATION
Reel/Frame 062284/0679 →