Patent Assignment
Reel/Frame 030895/0430
Assignment of Assignor's Interest
Recorded: 2013-07-29
Pages: 4
Assignors
DONNALLY, ROBERT B.
Executed: 2013-06-21
REN, CHUNQIAO
Executed: 2013-06-26
LIU, XILIN
Executed: 2013-06-26
Assignee
NATIONAL OILWELL VARCO, L.P.
7909 PARKWOOD CIRCLE DRIVE, HOUSTON, TEXAS, 77036
Covered Property
(1)
Bi-Directionally Raisable Drilling Rig Mast