Patent Assignment
Reel/Frame 023660/0176
Change of Name
Recorded: 2009-12-16
Pages: 3
Assignor
WORSLEY ALUMINA PTY LTD
Executed: 2008-11-10
Assignee
BHP BILLITON WORSLEY ALUMINA PTY LTD
GASTALDO ROAD, COLLIC, WA, 6225, AUSTRALIA
Covered Properties
(6)
Organic Impurity Removal Process for Bayer Liquors
Patent:
6,555,077 →
Application:
09/763,140 →
Bayer Causticisation
Patent:
6,676,910 →
Application:
09/787,943 →
Process for the Removal of Oxalate and/or Sulphate from Bayer Liquors
Patent:
6,743,403 →
Application:
09/936,781 →
Inhibiting the Formation of Tca in a Bayer Causticisation Process
Improved Process for Filter Aid Production in Alumina Refineries
Process for the Removal of Oxalate and/or Sulphate from Bayer Liquors
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 20, 2001
From: ROSENBERG, STEVEN PHILIP; TICHBON, WAYNE; HEALY, STEVEN JAMES
To: WORSLEY ALUMINA PTY LTD
Reel/Frame 011613/0488 →
Assignment of Assignor's Interest
Mar 23, 2001
From: ROSENBERG, STEVEN PHILIP; WILSON, DARREL JAMES; HEATH, CATHERINE ANN
To: WORSLEY ALUMINA PTY LTD.
Reel/Frame 011683/0479 →
Assignment of Assignor's Interest
Sep 18, 2001
From: ROSENBERG, STEVEN; TICHBON, WAYNE; WILSON, DARREL; HEATH, CATHERINE
To: WORSLEY ALUMINA PTY. LTD.
Reel/Frame 012346/0152 →
Assignment of Assignor's Interest
Aug 8, 2003
From: ROSENBERG, STEVEN P.; WILSON, DARREL J.
To: WORSLEY ALUMINA PTY. LTD.
Reel/Frame 014365/0123 →
Assignment of Assignor's Interest
Jan 6, 2006
From: ROSENBERG, STEVEN PHILIP; WILSON, DARREL JAMES; HEATH, CATHERINE ANN
To: WORSLEY ALUMINA PTY LTD
Reel/Frame 016980/0190 →