Patent Assignment
Reel/Frame 020711/0639
Assignment of Assignor's Interest
Recorded: 2008-03-27
Pages: 7
Assignor
LIU, GARY G.
Executed: 2001-04-19
Assignee
ZIX CORPORATION
2711 N. HASKELL AV., STE. 2300, LB 36, DALLAS, TEXAS, 75204
Covered Property
(1)
Certified Transmission System
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.