Patent Assignment
Reel/Frame 028947/0103
Assignment of Assignor's Interest
Recorded: 2012-09-12
Pages: 4
Assignee
VETCO GRAY INC.
4424 WEST SAM HOUSTON PARKWAY NORTH, SUITE 100, HOUSTON, TEXAS, 77041
Covered Property
(1)
Annulus Seal with Stepped Energizing Ring
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.