Patent Assignment
Reel/Frame 019937/0390
Assignment of Assignor's Interest
Recorded: 2007-10-09
Pages: 4
Assignor
ZHANG, TIEJUN
Executed: 2007-08-31
Assignee
MERICHEM COMPANY
5455 OLD SPANISH TRIAL, HOUSTON, TEXAS, 77023-5013
Covered Property
(1)
Removal of Residual Sulfur Compounds from a Caustic Stream
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.