Patent Assignment
Reel/Frame 026182/0446
Assignment of Assignor's Interest
Recorded: 2011-04-26
Pages: 3
Assignors
RAUTENBACH, GEORGE FREDERICK
Executed: 2011-03-14
DAVIS-BELMAR, CAROL SUSAN
Executed: 2011-04-08
DEMERGASSO, CECILIA SUSANA
Executed: 2011-04-08
Assignee
BHP BILLITON SA LIMITED
6 HOLLARD STREET, JOHANNESBURG, 2001, SOUTH AFRICA
Covered Property
(1)
Method of Treating a Sulphide Mineral
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.