Patent Assignment
Reel/Frame 046265/0904
Nunc Pro Tunc Assignment
Recorded: 2018-07-04
Pages: 4
Assignors
FU, DIANKUI
Executed: 2018-06-27
VIGDERMAN, LEONID
Executed: 2018-06-27
SHEN, LINGJUAN
Executed: 2018-06-27
Assignee
BJ SERVICES, LLC
11211 FM 2902 ROAD, TOMBALL, TEXAS, 77375
Covered Property
(1)
Sealers for Use in Stimulating Wells
Application:
15/992,882 →
Publication:
US 2018/0346800
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.