Patent Assignment
Reel/Frame 062214/0284
Assignment of Assignor's Interest
Recorded: 2022-12-27
Pages: 4
Assignors
VIGDERMAN, LEONID
Executed: 2018-09-19
SHEN, LINGJUAN
Executed: 2018-09-18
FU, DIANKUI
Executed: 2018-09-19
Assignee
BJ SERVICES, LLC
11211 FM 2920, TOMBALL, TEXAS, 77375
Covered Property
(1)
Frac Fluids for Far Field Diversion
Application:
18/146,851 →
Publication:
US 2023/0131776
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.